135869616 has 40 divisors (see below), whose sum is σ = 389997360. Its totient is φ = 45289728.

The previous prime is 135869603. The next prime is 135869659. The reversal of 135869616 is 616968531.

135869616 is a `hidden beast` number, since 1 + 3 + 586 + 9 + 61 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156825 + ... + 157688.

It is an arithmetic number, because the mean of its divisors is an integer number (9749934).

Almost surely, 2^135869616 is an apocalyptic number.

135869616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

135869616 is an abundant number, since it is smaller than the sum of its proper divisors (254127744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135869616 is a wasteful number, since it uses less digits than its factorization.

135869616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314530 (or 314518 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 135869616 is about 11656.3122813350. The cubic root of 135869616 is about 514.0919253999.

The spelling of 135869616 in words is "one hundred thirty-five million, eight hundred sixty-nine thousand, six hundred sixteen".