132121345225 has 27 divisors (see below), whose sum is σ = 165333708423. Its totient is φ = 104736021840.

The previous prime is 132121345217. The next prime is 132121345283. The reversal of 132121345225 is 522543121231.

It is a happy number.

The square root of 132121345225 is 363485.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 47563684281 + 84557660944 = 218091^2 + 290788^2 .

It is not a de Polignac number, because 132121345225 - 2³ = 132121345217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 252621814 + ... + 252622336.

Almost surely, 2^132121345225 is an apocalyptic number.

132121345225 is the 363485-th square number.

132121345225 is the 181743-rd centered octagonal number.

It is an amenable number.

132121345225 is a deficient number, since it is larger than the sum of its proper divisors (33212363198).

132121345225 is an frugal number, since it uses more digits than its factorization.

132121345225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334 (or 667 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

Adding to 132121345225 its reverse (522543121231), we get a palindrome (654664466456).

The spelling of 132121345225 in words is "one hundred thirty-two billion, one hundred twenty-one million, three hundred forty-five thousand, two hundred twenty-five".