172617059 has 2 divisors, whose sum is σ = 172617060. Its totient is φ = 172617058.

The previous prime is 172617043. The next prime is 172617073. The reversal of 172617059 is 950716271.

It is a strong prime.

It is an emirp because it is prime and its reverse (950716271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172617059 - 2⁴ = 172617043 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (172617079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86308529 + 86308530.

It is an arithmetic number, because the mean of its divisors is an integer number (86308530).

Almost surely, 2^172617059 is an apocalyptic number.

172617059 is a deficient number, since it is larger than the sum of its proper divisors (1).

172617059 is an equidigital number, since it uses as much as digits as its factorization.

172617059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26460, while the sum is 38.

The square root of 172617059 is about 13138.3811407646. The cubic root of 172617059 is about 556.7940311595.

The spelling of 172617059 in words is "one hundred seventy-two million, six hundred seventeen thousand, fifty-nine".