131632665 has 64 divisors (see below), whose sum is σ = 234455040. Its totient is φ = 62795520.

The previous prime is 131632637. The next prime is 131632667. The reversal of 131632665 is 566236131.

It is not a de Polignac number, because 131632665 - 2⁸ = 131632409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131632667) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 415087 + ... + 415403.

It is an arithmetic number, because the mean of its divisors is an integer number (3663360).

Almost surely, 2^131632665 is an apocalyptic number.

131632665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131632665 is a deficient number, since it is larger than the sum of its proper divisors (102822375).

131632665 is a wasteful number, since it uses less digits than its factorization.

131632665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its digits is 19440, while the sum is 33.

The square root of 131632665 is about 11473.1279518708. The cubic root of 131632665 is about 508.6915903861.

Adding to 131632665 its reverse (566236131), we get a palindrome (697868796).

The spelling of 131632665 in words is "one hundred thirty-one million, six hundred thirty-two thousand, six hundred sixty-five".