132921680 has 30 divisors (see below), whose sum is σ = 309282846. Its totient is φ = 53127424.

The previous prime is 132921671. The next prime is 132921683. The reversal of 132921680 is 86129231.

It can be written as a sum of positive squares in 3 ways, for example, as 49674304 + 83247376 = 7048^2 + 9124^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132921683) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102476 + ... + 103764.

Almost surely, 2^132921680 is an apocalyptic number.

132921680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132921680 is an abundant number, since it is smaller than the sum of its proper divisors (176361166).

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

132921680 is an frugal number, since it uses more digits than its factorization.

132921680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2591 (or 1296 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 132921680 is about 11529.1664919889. The cubic root of 132921680 is about 510.3466565386.

The spelling of 132921680 in words is "one hundred thirty-two million, nine hundred twenty-one thousand, six hundred eighty".