132644405 has 8 divisors (see below), whose sum is σ = 164662200. Its totient is φ = 102456256.

The previous prime is 132644399. The next prime is 132644417. The reversal of 132644405 is 504446231.

It can be written as a sum of positive squares in 4 ways, for example, as 5924356 + 126720049 = 2434^2 + 11257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132644405 - 2¹⁴ = 132628021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

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, 457250 + ... + 457539.

It is an arithmetic number, because the mean of its divisors is an integer number (20582775).

Almost surely, 2^132644405 is an apocalyptic number.

It is an amenable number.

132644405 is a deficient number, since it is larger than the sum of its proper divisors (32017795).

132644405 is an equidigital number, since it uses as much as digits as its factorization.

132644405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 914823.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 132644405 is about 11517.1352774898. The cubic root of 132644405 is about 509.9915479824.

The spelling of 132644405 in words is "one hundred thirty-two million, six hundred forty-four thousand, four hundred five".