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107131 = 149719
BaseRepresentation
bin11010001001111011
312102221211
4122021323
511412011
62143551
7624223
oct321173
9172854
10107131
1173542
1251bb7
13399bb
142b083
1521b21
hex1a27b

107131 has 4 divisors (see below), whose sum is σ = 108000. Its totient is φ = 106264.

The previous prime is 107123. The next prime is 107137. The reversal of 107131 is 131701.

Adding to 107131 its reverse (131701), we get a palindrome (238832).

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 107131 - 23 = 107123 is a prime.

It is a super-2 number, since 2×1071312 = 22954102322, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (107137) 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, 211 + ... + 508.

It is an arithmetic number, because the mean of its divisors is an integer number (27000).

2107131 is an apocalyptic number.

107131 is a deficient number, since it is larger than the sum of its proper divisors (869).

107131 is an equidigital number, since it uses as much as digits as its factorization.

107131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 21, while the sum is 13.

The square root of 107131 is about 327.3087227680. The cubic root of 107131 is about 47.4939604510.

The spelling of 107131 in words is "one hundred seven thousand, one hundred thirty-one".

Divisors: 1 149 719 107131