131901912 has 96 divisors (see below), whose sum is σ = 389398800. Its totient is φ = 41361408.

The previous prime is 131901911. The next prime is 131901919. The reversal of 131901912 is 219109131.

It is a super-2 number, since 2×131901912² = 34796228778511488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131901911) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61368 + ... + 63480.

Almost surely, 2^131901912 is an apocalyptic number.

131901912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131901912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194699400).

131901912 is an abundant number, since it is smaller than the sum of its proper divisors (257496888).

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

131901912 is a wasteful number, since it uses less digits than its factorization.

131901912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 131901912 is about 11484.8557674879. The cubic root of 131901912 is about 509.0381872505.

The spelling of 131901912 in words is "one hundred thirty-one million, nine hundred one thousand, nine hundred twelve".