32297139 has 24 divisors (see below), whose sum is σ = 53467232. Its totient is φ = 18403200.

The previous prime is 32297117. The next prime is 32297143. The reversal of 32297139 is 93179223.

It is not a de Polignac number, because 32297139 - 2⁸ = 32296883 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (32293139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37437 + ... + 38289.

Almost surely, 2^32297139 is an apocalyptic number.

32297139 is a deficient number, since it is larger than the sum of its proper divisors (21170093).

32297139 is a wasteful number, since it uses less digits than its factorization.

32297139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1467 (or 1464 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 32297139 is about 5683.0571878171. The cubic root of 32297139 is about 318.4598485334.

It can be divided in two parts, 322 and 97139, that added together give a triangular number (97461 = T₄₄₁).

The spelling of 32297139 in words is "thirty-two million, two hundred ninety-seven thousand, one hundred thirty-nine".