135253725 has 12 divisors (see below), whose sum is σ = 223619616. Its totient is φ = 72135280.

The previous prime is 135253697. The next prime is 135253739. The reversal of 135253725 is 527352531.

It is not a de Polignac number, because 135253725 - 2¹⁰ = 135252701 is a prime.

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, 901617 + ... + 901766.

It is an arithmetic number, because the mean of its divisors is an integer number (18634968).

Almost surely, 2^135253725 is an apocalyptic number.

135253725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135253725 is a deficient number, since it is larger than the sum of its proper divisors (88365891).

135253725 is a wasteful number, since it uses less digits than its factorization.

135253725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803396 (or 1803391 counting only the distinct ones).

The product of its digits is 31500, while the sum is 33.

The square root of 135253725 is about 11629.8634987690. The cubic root of 135253725 is about 513.3139633534.

The spelling of 135253725 in words is "one hundred thirty-five million, two hundred fifty-three thousand, seven hundred twenty-five".