135251357715 has 32 divisors (see below), whose sum is σ = 240462192960. Its totient is φ = 72129457152.

The previous prime is 135251357627. The next prime is 135251357719. The reversal of 135251357715 is 517753152531.

135251357715 is a `hidden beast` number, since 1 + 3 + 52 + 5 + 13 + 577 + 15 = 666.

It is not a de Polignac number, because 135251357715 - 2²² = 135247163411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (135251357719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3710157 + ... + 3746433.

It is an arithmetic number, because the mean of its divisors is an integer number (7514443530).

Almost surely, 2^135251357715 is an apocalyptic number.

135251357715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135251357715 is a deficient number, since it is larger than the sum of its proper divisors (105210835245).

135251357715 is a wasteful number, since it uses less digits than its factorization.

135251357715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63908 (or 63902 counting only the distinct ones).

The product of its digits is 551250, while the sum is 45.

The spelling of 135251357715 in words is "one hundred thirty-five billion, two hundred fifty-one million, three hundred fifty-seven thousand, seven hundred fifteen".