172094617 has 2 divisors, whose sum is σ = 172094618. Its totient is φ = 172094616.

The previous prime is 172094581. The next prime is 172094623. The reversal of 172094617 is 716490271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90174016 + 81920601 = 9496^2 + 9051^2 .

It is a cyclic number.

It is not a de Polignac number, because 172094617 - 2²⁷ = 37876889 is a prime.

It is not a weakly prime, because it can be changed into another prime (172094687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86047308 + 86047309.

It is an arithmetic number, because the mean of its divisors is an integer number (86047309).

Almost surely, 2^172094617 is an apocalyptic number.

It is an amenable number.

172094617 is a deficient number, since it is larger than the sum of its proper divisors (1).

172094617 is an equidigital number, since it uses as much as digits as its factorization.

172094617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 172094617 is about 13118.4837919632. The cubic root of 172094617 is about 556.2317334068.

The spelling of 172094617 in words is "one hundred seventy-two million, ninety-four thousand, six hundred seventeen".