131112156 has 24 divisors (see below), whose sum is σ = 349632640. Its totient is φ = 37460592.

The previous prime is 131112139. The next prime is 131112169. The reversal of 131112156 is 651211131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 780346 + ... + 780513.

Almost surely, 2^131112156 is an apocalyptic number.

It is an amenable number.

131112156 is an abundant number, since it is smaller than the sum of its proper divisors (218520484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131112156 is a wasteful number, since it uses less digits than its factorization.

131112156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560873 (or 1560871 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 131112156 is about 11450.4216516249. The cubic root of 131112156 is about 508.0202060700.

Adding to 131112156 its reverse (651211131), we get a palindrome (782323287).

The spelling of 131112156 in words is "one hundred thirty-one million, one hundred twelve thousand, one hundred fifty-six".