33113157 has 32 divisors (see below), whose sum is σ = 56954880. Its totient is φ = 16605120.

The previous prime is 33113149. The next prime is 33113167. The reversal of 33113157 is 75131133.

It is not a de Polignac number, because 33113157 - 2³ = 33113149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33113107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4228 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (1779840).

Almost surely, 2^33113157 is an apocalyptic number.

It is an amenable number.

33113157 is a deficient number, since it is larger than the sum of its proper divisors (23841723).

33113157 is a wasteful number, since it uses less digits than its factorization.

33113157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993.

The product of its digits is 945, while the sum is 24.

The square root of 33113157 is about 5754.4032705399. The cubic root of 33113157 is about 321.1196359220.

The spelling of 33113157 in words is "thirty-three million, one hundred thirteen thousand, one hundred fifty-seven".