137446525 has 6 divisors (see below), whose sum is σ = 170433722. Its totient is φ = 109957200.

The previous prime is 137446523. The next prime is 137446549. The reversal of 137446525 is 525644731.

It can be written as a sum of positive squares in 3 ways, for example, as 4251844 + 133194681 = 2062^2 + 11541^2 .

It is not a de Polignac number, because 137446525 - 2¹ = 137446523 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137446523) 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, 2748906 + ... + 2748955.

Almost surely, 2^137446525 is an apocalyptic number.

It is an amenable number.

137446525 is a deficient number, since it is larger than the sum of its proper divisors (32987197).

137446525 is an equidigital number, since it uses as much as digits as its factorization.

137446525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5497871 (or 5497866 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 137446525 is about 11723.7589961582. The cubic root of 137446525 is about 516.0731385321.

The spelling of 137446525 in words is "one hundred thirty-seven million, four hundred forty-six thousand, five hundred twenty-five".