13572173 has 2 divisors, whose sum is σ = 13572174. Its totient is φ = 13572172.

The previous prime is 13572157. The next prime is 13572193. The reversal of 13572173 is 37127531.

13572173 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12517444 + 1054729 = 3538^2 + 1027^2 .

It is a cyclic number.

It is not a de Polignac number, because 13572173 - 2⁴ = 13572157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13572193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6786086 + 6786087.

It is an arithmetic number, because the mean of its divisors is an integer number (6786087).

Almost surely, 2^13572173 is an apocalyptic number.

It is an amenable number.

13572173 is a deficient number, since it is larger than the sum of its proper divisors (1).

13572173 is an equidigital number, since it uses as much as digits as its factorization.

13572173 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 29.

The square root of 13572173 is about 3684.0430236359. The cubic root of 13572173 is about 238.5337279264.

The spelling of 13572173 in words is "thirteen million, five hundred seventy-two thousand, one hundred seventy-three".