135908725 has 36 divisors (see below), whose sum is σ = 181354464. Its totient is φ = 100835680.

The previous prime is 135908723. The next prime is 135908749. The reversal of 135908725 is 527809531.

135908725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135908725 - 2¹ = 135908723 is a prime.

It is a super-2 number, since 2×135908725² = 36942363062251250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135908723) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1270122 + ... + 1270228.

It is an arithmetic number, because the mean of its divisors is an integer number (5037624).

Almost surely, 2^135908725 is an apocalyptic number.

It is an amenable number.

135908725 is a deficient number, since it is larger than the sum of its proper divisors (45445739).

135908725 is a wasteful number, since it uses less digits than its factorization.

135908725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 135908725 is about 11657.9897495237. The cubic root of 135908725 is about 514.1412464400.

The spelling of 135908725 in words is "one hundred thirty-five million, nine hundred eight thousand, seven hundred twenty-five".