132691408 has 20 divisors (see below), whose sum is σ = 265383808. Its totient is φ = 64205280.

The previous prime is 132691399. The next prime is 132691417. The reversal of 132691408 is 804196231.

It is an interprime number because it is at equal distance from previous prime (132691399) and next prime (132691417).

132691408 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133266 + ... + 134257.

Almost surely, 2^132691408 is an apocalyptic number.

It is an amenable number.

132691408 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132691408 is a wasteful number, since it uses less digits than its factorization.

132691408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267562 (or 267556 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 132691408 is about 11519.1756649510. The cubic root of 132691408 is about 510.0517799535.

The spelling of 132691408 in words is "one hundred thirty-two million, six hundred ninety-one thousand, four hundred eight".