135252515 has 16 divisors (see below), whose sum is σ = 165758400. Its totient is φ = 105920640.

The previous prime is 135252497. The next prime is 135252521. The reversal of 135252515 is 515252531.

It is not a de Polignac number, because 135252515 - 2⁶ = 135252451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51617 + ... + 54173.

It is an arithmetic number, because the mean of its divisors is an integer number (10359900).

Almost surely, 2^135252515 is an apocalyptic number.

135252515 is a deficient number, since it is larger than the sum of its proper divisors (30505885).

135252515 is a wasteful number, since it uses less digits than its factorization.

135252515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2782.

The product of its digits is 7500, while the sum is 29.

The square root of 135252515 is about 11629.8114774058. The cubic root of 135252515 is about 513.3124326210.

The spelling of 135252515 in words is "one hundred thirty-five million, two hundred fifty-two thousand, five hundred fifteen".