132315021 has 24 divisors (see below), whose sum is σ = 199944576. Its totient is φ = 84157920.

The previous prime is 132315019. The next prime is 132315041. The reversal of 132315021 is 120513231.

132315021 is a `hidden beast` number, since 132 + 31 + 502 + 1 = 666.

It is not a de Polignac number, because 132315021 - 2¹ = 132315019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 132314985 and 132315003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132315041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130111 + ... + 131123.

It is an arithmetic number, because the mean of its divisors is an integer number (8331024).

Almost surely, 2^132315021 is an apocalyptic number.

It is an amenable number.

132315021 is a deficient number, since it is larger than the sum of its proper divisors (67629555).

132315021 is a wasteful number, since it uses less digits than its factorization.

132315021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673 (or 1670 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 132315021 is about 11502.8266526102. The cubic root of 132315021 is about 509.5690592642.

Adding to 132315021 its reverse (120513231), we get a palindrome (252828252).

The spelling of 132315021 in words is "one hundred thirty-two million, three hundred fifteen thousand, twenty-one".