32133921 has 32 divisors (see below), whose sum is σ = 47677440. Its totient is φ = 19160064.

The previous prime is 32133917. The next prime is 32133929. The reversal of 32133921 is 12933123.

It is not a de Polignac number, because 32133921 - 2² = 32133917 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32133891 and 32133900.

It is not an unprimeable number, because it can be changed into a prime (32133929) 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, 166401 + ... + 166593.

It is an arithmetic number, because the mean of its divisors is an integer number (1489920).

Almost surely, 2^32133921 is an apocalyptic number.

It is an amenable number.

32133921 is a deficient number, since it is larger than the sum of its proper divisors (15543519).

32133921 is a wasteful number, since it uses less digits than its factorization.

32133921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365.

The product of its digits is 972, while the sum is 24.

The square root of 32133921 is about 5668.6789466330. The cubic root of 32133921 is about 317.9224821930.

The spelling of 32133921 in words is "thirty-two million, one hundred thirty-three thousand, nine hundred twenty-one".