172054039 has 2 divisors, whose sum is σ = 172054040. Its totient is φ = 172054038.

The previous prime is 172054027. The next prime is 172054049. The reversal of 172054039 is 930450271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172054039 - 2⁹ = 172053527 is a prime.

It is equal to p_9611536 and since 172054039 and 9611536 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 172054039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172054009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86027019 + 86027020.

It is an arithmetic number, because the mean of its divisors is an integer number (86027020).

Almost surely, 2^172054039 is an apocalyptic number.

172054039 is a deficient number, since it is larger than the sum of its proper divisors (1).

172054039 is an equidigital number, since it uses as much as digits as its factorization.

172054039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 172054039 is about 13116.9371043701. The cubic root of 172054039 is about 556.1880122146.

The spelling of 172054039 in words is "one hundred seventy-two million, fifty-four thousand, thirty-nine".