135215475 has 48 divisors (see below), whose sum is σ = 231413760. Its totient is φ = 69625600.

The previous prime is 135215441. The next prime is 135215477. The reversal of 135215475 is 574512531.

135215475 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 135215475 - 2⁶ = 135215411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135215477) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 313510 + ... + 313940.

It is an arithmetic number, because the mean of its divisors is an integer number (4821120).

Almost surely, 2^135215475 is an apocalyptic number.

135215475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135215475 is a deficient number, since it is larger than the sum of its proper divisors (96198285).

135215475 is a wasteful number, since it uses less digits than its factorization.

135215475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580 (or 575 counting only the distinct ones).

The product of its digits is 21000, while the sum is 33.

The square root of 135215475 is about 11628.2189091881. The cubic root of 135215475 is about 513.2655700830.

The spelling of 135215475 in words is "one hundred thirty-five million, two hundred fifteen thousand, four hundred seventy-five".