131452040 has 16 divisors (see below), whose sum is σ = 295767180. Its totient is φ = 52580800.

The previous prime is 131452039. The next prime is 131452067. The reversal of 131452040 is 40254131.

It can be written as a sum of positive squares in 2 ways, for example, as 122367844 + 9084196 = 11062^2 + 3014^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643111 + ... + 1643190.

Almost surely, 2^131452040 is an apocalyptic number.

131452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131452040 is an abundant number, since it is smaller than the sum of its proper divisors (164315140).

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

131452040 is a wasteful number, since it uses less digits than its factorization.

131452040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286312 (or 3286308 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 131452040 is about 11465.2535951020. The cubic root of 131452040 is about 508.4588100771.

The spelling of 131452040 in words is "one hundred thirty-one million, four hundred fifty-two thousand, forty".