32173139 has 2 divisors, whose sum is σ = 32173140. Its totient is φ = 32173138.

The previous prime is 32173111. The next prime is 32173147. The reversal of 32173139 is 93137123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 32173139 - 2²⁰ = 31124563 is a prime.

It is a super-2 number, since 2×32173139² = 2070221746226642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (32173109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16086569 + 16086570.

It is an arithmetic number, because the mean of its divisors is an integer number (16086570).

Almost surely, 2^32173139 is an apocalyptic number.

32173139 is a deficient number, since it is larger than the sum of its proper divisors (1).

32173139 is an equidigital number, since it uses as much as digits as its factorization.

32173139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 29.

The square root of 32173139 is about 5672.1370752125. The cubic root of 32173139 is about 318.0517662915.

The spelling of 32173139 in words is "thirty-two million, one hundred seventy-three thousand, one hundred thirty-nine".