132371721 has 6 divisors (see below), whose sum is σ = 191203610. Its totient is φ = 88247808.

The previous prime is 132371669. The next prime is 132371731. The reversal of 132371721 is 127173231.

It can be written as a sum of positive squares in only one way, i.e., 124077321 + 8294400 = 11139^2 + 2880^2 .

It is not a de Polignac number, because 132371721 - 2⁷ = 132371593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132371731) 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, 7353976 + ... + 7353993.

Almost surely, 2^132371721 is an apocalyptic number.

It is an amenable number.

132371721 is a deficient number, since it is larger than the sum of its proper divisors (58831889).

132371721 is a wasteful number, since it uses less digits than its factorization.

132371721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14707975 (or 14707972 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 132371721 is about 11505.2910002312. The cubic root of 132371721 is about 509.6418361855.

The spelling of 132371721 in words is "one hundred thirty-two million, three hundred seventy-one thousand, seven hundred twenty-one".