131969528 has 32 divisors (see below), whose sum is σ = 255455760. Its totient is φ = 63866880.

The previous prime is 131969479. The next prime is 131969533. The reversal of 131969528 is 825969131.

It is a happy number.

It is a congruent number.

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, 61400 + ... + 63512.

Almost surely, 2^131969528 is an apocalyptic number.

It is an amenable number.

131969528 is a deficient number, since it is larger than the sum of its proper divisors (123486232).

131969528 is a wasteful number, since it uses less digits than its factorization.

131969528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2363 counting only the distinct ones).

The product of its digits is 116640, while the sum is 44.

The square root of 131969528 is about 11487.7990929507. The cubic root of 131969528 is about 509.1251540121.

The spelling of 131969528 in words is "one hundred thirty-one million, nine hundred sixty-nine thousand, five hundred twenty-eight".