137357225 has 6 divisors (see below), whose sum is σ = 170322990. Its totient is φ = 109885760.

The previous prime is 137357203. The next prime is 137357237. The reversal of 137357225 is 522753731.

It can be written as a sum of positive squares in 3 ways, for example, as 4946176 + 132411049 = 2224^2 + 11507^2 .

It is not a de Polignac number, because 137357225 - 2¹⁸ = 137095081 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2747120 + ... + 2747169.

It is an arithmetic number, because the mean of its divisors is an integer number (28387165).

Almost surely, 2^137357225 is an apocalyptic number.

It is an amenable number.

137357225 is a deficient number, since it is larger than the sum of its proper divisors (32965765).

137357225 is an equidigital number, since it uses as much as digits as its factorization.

137357225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494299 (or 5494294 counting only the distinct ones).

The product of its digits is 44100, while the sum is 35.

The square root of 137357225 is about 11719.9498719064. The cubic root of 137357225 is about 515.9613488366.

The spelling of 137357225 in words is "one hundred thirty-seven million, three hundred fifty-seven thousand, two hundred twenty-five".