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130061 = 831567
BaseRepresentation
bin11111110000001101
320121102002
4133300031
513130221
62442045
71051121
oct376015
9217362
10130061
1189798
1263325
1347279
1435581
152880b
hex1fc0d

130061 has 4 divisors (see below), whose sum is σ = 131712. Its totient is φ = 128412.

The previous prime is 130057. The next prime is 130069. The reversal of 130061 is 160031.

130061 is nontrivially palindromic in base 11.

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.

It is a cyclic number.

It is not a de Polignac number, because 130061 - 22 = 130057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 701 + ... + 866.

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

2130061 is an apocalyptic number.

It is an amenable number.

130061 is a deficient number, since it is larger than the sum of its proper divisors (1651).

130061 is an equidigital number, since it uses as much as digits as its factorization.

130061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130061 is about 360.6397094054. The cubic root of 130061 is about 50.6658923781.

Adding to 130061 its reverse (160031), we get a palindrome (290092).

The spelling of 130061 in words is "one hundred thirty thousand, sixty-one".

Divisors: 1 83 1567 130061