131544528 has 20 divisors (see below), whose sum is σ = 339823488. Its totient is φ = 43848160.

The previous prime is 131544503. The next prime is 131544541. The reversal of 131544528 is 825445131.

It is a congruent number.

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, 1370208 + ... + 1370303.

Almost surely, 2^131544528 is an apocalyptic number.

It is an amenable number.

131544528 is an abundant number, since it is smaller than the sum of its proper divisors (208278960).

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

131544528 is a wasteful number, since it uses less digits than its factorization.

131544528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740522 (or 2740516 counting only the distinct ones).

The product of its digits is 19200, while the sum is 33.

The square root of 131544528 is about 11469.2862899136. The cubic root of 131544528 is about 508.5780305261.

Adding to 131544528 its reverse (825445131), we get a palindrome (956989659).

The spelling of 131544528 in words is "one hundred thirty-one million, five hundred forty-four thousand, five hundred twenty-eight".