135918655025 has 12 divisors (see below), whose sum is σ = 171719117532. Its totient is φ = 106683320640.

The previous prime is 135918655013. The next prime is 135918655057. The reversal of 135918655025 is 520556819531.

It can be written as a sum of positive squares in 6 ways, for example, as 318693904 + 135599961121 = 17852^2 + 368239^2 .

It is not a de Polignac number, because 135918655025 - 2⁴ = 135918655009 is a prime.

It is a Duffinian 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, 51288734 + ... + 51291383.

It is an arithmetic number, because the mean of its divisors is an integer number (14309926461).

Almost surely, 2^135918655025 is an apocalyptic number.

It is an amenable number.

135918655025 is a deficient number, since it is larger than the sum of its proper divisors (35800462507).

135918655025 is a wasteful number, since it uses less digits than its factorization.

135918655025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102580180 (or 102580175 counting only the distinct ones).

The product of its (nonzero) digits is 1620000, while the sum is 50.

The spelling of 135918655025 in words is "one hundred thirty-five billion, nine hundred eighteen million, six hundred fifty-five thousand, twenty-five".