135373225 has 27 divisors (see below), whose sum is σ = 182789733. Its totient is φ = 99409440.

The previous prime is 135373181. The next prime is 135373241. The reversal of 135373225 is 522373531.

The square root of 135373225 is 11635.

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

It can be written as a sum of positive squares in 4 ways, for example, as 34892649 + 100480576 = 5907^2 + 10024^2 .

It is not a de Polignac number, because 135373225 - 2⁷ = 135373097 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, 756186 + ... + 756364.

Almost surely, 2^135373225 is an apocalyptic number.

135373225 is the 11635-th square number.

135373225 is the 5818-th centered octagonal number.

It is an amenable number.

135373225 is a deficient number, since it is larger than the sum of its proper divisors (47416508).

135373225 is an equidigital number, since it uses as much as digits as its factorization.

135373225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 197 counting only the distinct ones).

The product of its digits is 18900, while the sum is 31.

The cubic root of 135373225 is about 513.4650940328.

The spelling of 135373225 in words is "one hundred thirty-five million, three hundred seventy-three thousand, two hundred twenty-five".