135163968 has 56 divisors (see below), whose sum is σ = 369173760. Its totient is φ = 43599360.

The previous prime is 135163949. The next prime is 135163993. The reversal of 135163968 is 869361531.

It is a happy number.

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, 5403 + ... + 17306.

Almost surely, 2^135163968 is an apocalyptic number.

It is an amenable number.

135163968 is an abundant number, since it is smaller than the sum of its proper divisors (234009792).

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

135163968 is a wasteful number, since it uses less digits than its factorization.

135163968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755 (or 22745 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 135163968 is about 11626.0039566482. The cubic root of 135163968 is about 513.2003898531.

The spelling of 135163968 in words is "one hundred thirty-five million, one hundred sixty-three thousand, nine hundred sixty-eight".