132644457 has 12 divisors (see below), whose sum is σ = 209015664. Its totient is φ = 80390520.

The previous prime is 132644441. The next prime is 132644459. The reversal of 132644457 is 754446231.

132644457 is a `hidden beast` number, since 1 + 3 + 2 + 644 + 4 + 5 + 7 = 666.

It is not a de Polignac number, because 132644457 - 2⁴ = 132644441 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (132644459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 669823 + ... + 670020.

It is an arithmetic number, because the mean of its divisors is an integer number (17417972).

Almost surely, 2^132644457 is an apocalyptic number.

It is an amenable number.

132644457 is a deficient number, since it is larger than the sum of its proper divisors (76371207).

132644457 is a wasteful number, since it uses less digits than its factorization.

132644457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339860 (or 1339857 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 132644457 is about 11517.1375349954. The cubic root of 132644457 is about 509.9916146257.

The spelling of 132644457 in words is "one hundred thirty-two million, six hundred forty-four thousand, four hundred fifty-seven".