131550612 has 24 divisors (see below), whose sum is σ = 317536800. Its totient is φ = 42338016.

The previous prime is 131550557. The next prime is 131550613. The reversal of 131550612 is 216055131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131550613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188662 + ... + 189357.

It is an arithmetic number, because the mean of its divisors is an integer number (13230700).

Almost surely, 2^131550612 is an apocalyptic number.

131550612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131550612 is an abundant number, since it is smaller than the sum of its proper divisors (185986188).

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

131550612 is a wasteful number, since it uses less digits than its factorization.

131550612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378055 (or 378053 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 131550612 is about 11469.5515169513. The cubic root of 131550612 is about 508.5858710677.

The spelling of 131550612 in words is "one hundred thirty-one million, five hundred fifty thousand, six hundred twelve".