33130917 has 16 divisors (see below), whose sum is σ = 49193280. Its totient is φ = 22037616.

The previous prime is 33130907. The next prime is 33130921. The reversal of 33130917 is 71903133.

It is not a de Polignac number, because 33130917 - 2⁴ = 33130901 is a prime.

It is a super-2 number, since 2×33130917² = 2195315322521778, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13938 + ... + 16140.

It is an arithmetic number, because the mean of its divisors is an integer number (3074580).

Almost surely, 2^33130917 is an apocalyptic number.

It is an amenable number.

33130917 is a deficient number, since it is larger than the sum of its proper divisors (16062363).

33130917 is a wasteful number, since it uses less digits than its factorization.

33130917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2769 (or 2763 counting only the distinct ones).

The product of its (nonzero) digits is 1701, while the sum is 27.

The square root of 33130917 is about 5755.9462297697. The cubic root of 33130917 is about 321.1770357186.

The spelling of 33130917 in words is "thirty-three million, one hundred thirty thousand, nine hundred seventeen".