136841725 has 12 divisors (see below), whose sum is σ = 174270964. Its totient is φ = 106513920.

The previous prime is 136841717. The next prime is 136841737. The reversal of 136841725 is 527148631.

It can be written as a sum of positive squares in 6 ways, for example, as 9467929 + 127373796 = 3077^2 + 11286^2 .

It is not a de Polignac number, because 136841725 - 2³ = 136841717 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73044 + ... + 74893.

Almost surely, 2^136841725 is an apocalyptic number.

It is an amenable number.

136841725 is a deficient number, since it is larger than the sum of its proper divisors (37429239).

136841725 is a wasteful number, since it uses less digits than its factorization.

136841725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147984 (or 147979 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 136841725 is about 11697.9367838948. The cubic root of 136841725 is about 515.3150741119.

The spelling of 136841725 in words is "one hundred thirty-six million, eight hundred forty-one thousand, seven hundred twenty-five".