131252634 has 12 divisors (see below), whose sum is σ = 284380746. Its totient is φ = 43750872.

The previous prime is 131252621. The next prime is 131252683. The reversal of 131252634 is 436252131.

131252634 is a `hidden beast` number, since 1 + 3 + 1 + 25 + 2 + 634 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113486409 + 17766225 = 10653^2 + 4215^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131252598 and 131252607.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3645889 + ... + 3645924.

Almost surely, 2^131252634 is an apocalyptic number.

131252634 is an abundant number, since it is smaller than the sum of its proper divisors (153128112).

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

131252634 is a wasteful number, since it uses less digits than its factorization.

131252634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7291821 (or 7291818 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 131252634 is about 11456.5541939974. The cubic root of 131252634 is about 508.2015779885.

The spelling of 131252634 in words is "one hundred thirty-one million, two hundred fifty-two thousand, six hundred thirty-four".