172339039 has 2 divisors, whose sum is σ = 172339040. Its totient is φ = 172339038.

The previous prime is 172339033. The next prime is 172339043. The reversal of 172339039 is 930933271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172339039 - 2⁹ = 172338527 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172338989 and 172339007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172339033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86169519 + 86169520.

It is an arithmetic number, because the mean of its divisors is an integer number (86169520).

Almost surely, 2^172339039 is an apocalyptic number.

172339039 is a deficient number, since it is larger than the sum of its proper divisors (1).

172339039 is an equidigital number, since it uses as much as digits as its factorization.

172339039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 172339039 is about 13127.7964259048. The cubic root of 172339039 is about 556.4949431867.

The spelling of 172339039 in words is "one hundred seventy-two million, three hundred thirty-nine thousand, thirty-nine".