172074613 has 2 divisors, whose sum is σ = 172074614. Its totient is φ = 172074612.

The previous prime is 172074601. The next prime is 172074619. The reversal of 172074613 is 316470271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165714129 + 6360484 = 12873^2 + 2522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172074613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172074619) 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, 86037306 + 86037307.

It is an arithmetic number, because the mean of its divisors is an integer number (86037307).

Almost surely, 2^172074613 is an apocalyptic number.

It is an amenable number.

172074613 is a deficient number, since it is larger than the sum of its proper divisors (1).

172074613 is an equidigital number, since it uses as much as digits as its factorization.

172074613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 172074613 is about 13117.7213341342. The cubic root of 172074613 is about 556.2101807459.

The spelling of 172074613 in words is "one hundred seventy-two million, seventy-four thousand, six hundred thirteen".