153121356 has 18 divisors (see below), whose sum is σ = 387056852. Its totient is φ = 51040440.

The previous prime is 153121333. The next prime is 153121393. The reversal of 153121356 is 653121351.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×153121356² = 46892299326557472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2126650 + ... + 2126721.

Almost surely, 2^153121356 is an apocalyptic number.

It is an amenable number.

153121356 is an abundant number, since it is smaller than the sum of its proper divisors (233935496).

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

153121356 is a wasteful number, since it uses less digits than its factorization.

153121356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4253381 (or 4253376 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

The square root of 153121356 is about 12374.2214300537. The cubic root of 153121356 is about 534.9894964019.

The spelling of 153121356 in words is "one hundred fifty-three million, one hundred twenty-one thousand, three hundred fifty-six".