131512 has 16 divisors (see below), whose sum is σ = 261360. Its totient is φ = 61824.

The previous prime is 131507. The next prime is 131519. The reversal of 131512 is 215131.

It is a super-2 number, since 2×131512² = 34590812288, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 131492 and 131501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131519) 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, 348 + ... + 619.

It is an arithmetic number, because the mean of its divisors is an integer number (16335).

2¹³¹⁵¹² is an apocalyptic number.

It is an amenable number.

131512 is a deficient number, since it is larger than the sum of its proper divisors (129848).

131512 is a wasteful number, since it uses less digits than its factorization.

131512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 986 counting only the distinct ones).

The product of its digits is 30, while the sum is 13.

The square root of 131512 is about 362.6458327349. The cubic root of 131512 is about 50.8536107105.

Adding to 131512 its reverse (215131), we get a palindrome (346643).

It can be divided in two parts, 1 and 31512, that added together give a palindrome (31513).

The spelling of 131512 in words is "one hundred thirty-one thousand, five hundred twelve".