33133972 has 6 divisors (see below), whose sum is σ = 57984458. Its totient is φ = 16566984.

The previous prime is 33133949. The next prime is 33133993. The reversal of 33133972 is 27933133.

It can be written as a sum of positive squares in only one way, i.e., 32421636 + 712336 = 5694^2 + 844^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4141743 + ... + 4141750.

Almost surely, 2^33133972 is an apocalyptic number.

It is an amenable number.

33133972 is a deficient number, since it is larger than the sum of its proper divisors (24850486).

33133972 is a wasteful number, since it uses less digits than its factorization.

33133972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8283497 (or 8283495 counting only the distinct ones).

The product of its digits is 10206, while the sum is 31.

The square root of 33133972 is about 5756.2116013920. The cubic root of 33133972 is about 321.1869073207.

The spelling of 33133972 in words is "thirty-three million, one hundred thirty-three thousand, nine hundred seventy-two".