131572040 has 32 divisors (see below), whose sum is σ = 296370360. Its totient is φ = 52569600.

The previous prime is 131572031. The next prime is 131572057. The reversal of 131572040 is 40275131.

It can be written as a sum of positive squares in 4 ways, for example, as 110796676 + 20775364 = 10526^2 + 4558^2 .

It is a super-2 number, since 2×131572040² = 34622403419523200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131571997 and 131572015.

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, 58130 + ... + 60350.

Almost surely, 2^131572040 is an apocalyptic number.

131572040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131572040 is an abundant number, since it is smaller than the sum of its proper divisors (164798320).

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

131572040 is a wasteful number, since it uses less digits than its factorization.

131572040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713 (or 3709 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 131572040 is about 11470.4856043674. The cubic root of 131572040 is about 508.6134837262.

The spelling of 131572040 in words is "one hundred thirty-one million, five hundred seventy-two thousand, forty".