132637561 has 24 divisors (see below), whose sum is σ = 164816640. Its totient is φ = 106192800.

The previous prime is 132637541. The next prime is 132637577. The reversal of 132637561 is 165736231.

It is not a de Polignac number, because 132637561 - 2⁷ = 132637433 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132637541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42546 + ... + 45556.

It is an arithmetic number, because the mean of its divisors is an integer number (6867360).

Almost surely, 2^132637561 is an apocalyptic number.

It is an amenable number.

132637561 is a deficient number, since it is larger than the sum of its proper divisors (32179079).

132637561 is a wasteful number, since it uses less digits than its factorization.

132637561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085 (or 3078 counting only the distinct ones).

The product of its digits is 22680, while the sum is 34.

The square root of 132637561 is about 11516.8381511594. The cubic root of 132637561 is about 509.9827765553.

The spelling of 132637561 in words is "one hundred thirty-two million, six hundred thirty-seven thousand, five hundred sixty-one".