33120157 has 4 divisors (see below), whose sum is σ = 37851616. Its totient is φ = 28388700.

The previous prime is 33120149. The next prime is 33120179. The reversal of 33120157 is 75102133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75102133 = 1201 ⋅62533.

It is a cyclic number.

It is not a de Polignac number, because 33120157 - 2³ = 33120149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33120137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2365719 + ... + 2365732.

It is an arithmetic number, because the mean of its divisors is an integer number (9462904).

Almost surely, 2^33120157 is an apocalyptic number.

It is an amenable number.

33120157 is a deficient number, since it is larger than the sum of its proper divisors (4731459).

33120157 is an equidigital number, since it uses as much as digits as its factorization.

33120157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4731458.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 33120157 is about 5755.0114682770. The cubic root of 33120157 is about 321.1422621656.

The spelling of 33120157 in words is "thirty-three million, one hundred twenty thousand, one hundred fifty-seven".