131494528 has 64 divisors (see below), whose sum is σ = 290651040. Its totient is φ = 58752000.

The previous prime is 131494513. The next prime is 131494543. The reversal of 131494528 is 825494131.

It is an interprime number because it is at equal distance from previous prime (131494513) and next prime (131494543).

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85123 + ... + 86653.

Almost surely, 2^131494528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131494528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145325520).

131494528 is an abundant number, since it is smaller than the sum of its proper divisors (159156512).

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

131494528 is a wasteful number, since it uses less digits than its factorization.

131494528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1617 (or 1605 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 131494528 is about 11467.1063481595. The cubic root of 131494528 is about 508.5135856206.

The spelling of 131494528 in words is "one hundred thirty-one million, four hundred ninety-four thousand, five hundred twenty-eight".