135552815 has 32 divisors (see below), whose sum is σ = 179988480. Its totient is φ = 97542144.

The previous prime is 135552763. The next prime is 135552817. The reversal of 135552815 is 518255531.

135552815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 135552815 - 2¹⁶ = 135487279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135552817) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 312839 + ... + 313271.

It is an arithmetic number, because the mean of its divisors is an integer number (5624640).

Almost surely, 2^135552815 is an apocalyptic number.

135552815 is a deficient number, since it is larger than the sum of its proper divisors (44435665).

135552815 is a wasteful number, since it uses less digits than its factorization.

135552815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611.

The product of its digits is 30000, while the sum is 35.

The square root of 135552815 is about 11642.7151043045. The cubic root of 135552815 is about 513.6920528687.

The spelling of 135552815 in words is "one hundred thirty-five million, five hundred fifty-two thousand, eight hundred fifteen".