132506428 has 12 divisors (see below), whose sum is σ = 232218280. Its totient is φ = 66158352.

The previous prime is 132506417. The next prime is 132506447. The reversal of 132506428 is 824605231.

It is a super-2 number, since 2×132506428² = 35115906922638368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 132506428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20526 + ... + 26197.

Almost surely, 2^132506428 is an apocalyptic number.

It is an amenable number.

132506428 is a deficient number, since it is larger than the sum of its proper divisors (99711852).

132506428 is a wasteful number, since it uses less digits than its factorization.

132506428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47436 (or 47434 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 132506428 is about 11511.1436443127. The cubic root of 132506428 is about 509.8146551925.

The spelling of 132506428 in words is "one hundred thirty-two million, five hundred six thousand, four hundred twenty-eight".