135311556 has 12 divisors (see below), whose sum is σ = 315726992. Its totient is φ = 45103848.

The previous prime is 135311537. The next prime is 135311563. The reversal of 135311556 is 655113531.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×135311556² = 36618434374282272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5637970 + ... + 5637993.

Almost surely, 2^135311556 is an apocalyptic number.

It is an amenable number.

135311556 is an abundant number, since it is smaller than the sum of its proper divisors (180415436).

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

135311556 is a wasteful number, since it uses less digits than its factorization.

135311556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11275970 (or 11275968 counting only the distinct ones).

The product of its digits is 6750, while the sum is 30.

The square root of 135311556 is about 11632.3495477053. The cubic root of 135311556 is about 513.3871128604.

The spelling of 135311556 in words is "one hundred thirty-five million, three hundred eleven thousand, five hundred fifty-six".