172104293 has 2 divisors, whose sum is σ = 172104294. Its totient is φ = 172104292.

The previous prime is 172104269. The next prime is 172104301. The reversal of 172104293 is 392401271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164275489 + 7828804 = 12817^2 + 2798^2 .

It is a cyclic number.

It is not a de Polignac number, because 172104293 - 2¹⁸ = 171842149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172104203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86052146 + 86052147.

It is an arithmetic number, because the mean of its divisors is an integer number (86052147).

Almost surely, 2^172104293 is an apocalyptic number.

It is an amenable number.

172104293 is a deficient number, since it is larger than the sum of its proper divisors (1).

172104293 is an equidigital number, since it uses as much as digits as its factorization.

172104293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 172104293 is about 13118.8525793989. The cubic root of 172104293 is about 556.2421578998.

The spelling of 172104293 in words is "one hundred seventy-two million, one hundred four thousand, two hundred ninety-three".