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130901 = 223587
BaseRepresentation
bin11111111101010101
320122120012
4133331111
513142101
62450005
71053431
oct377525
9218505
10130901
118a391
1263905
1347774
14359c1
1528bbb
hex1ff55

130901 has 4 divisors (see below), whose sum is σ = 131712. Its totient is φ = 130092.

The previous prime is 130873. The next prime is 130927. The reversal of 130901 is 109031.

130901 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 109031 = 138387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130901 is a prime.

It is a fibodiv number, since the Fibonacci-like sequence with seeds 13 and 901 contains 130901 itself.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71 + ... + 516.

It is an arithmetic number, because the mean of its divisors is an integer number (32928).

2130901 is an apocalyptic number.

It is an amenable number.

130901 is a deficient number, since it is larger than the sum of its proper divisors (811).

130901 is an equidigital number, since it uses as much as digits as its factorization.

130901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 810.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 130901 is about 361.8024322749. The cubic root of 130901 is about 50.7747337516.

Adding to 130901 its reverse (109031), we get a palindrome (239932).

The spelling of 130901 in words is "one hundred thirty thousand, nine hundred one".

Divisors: 1 223 587 130901