172352113 has 2 divisors, whose sum is σ = 172352114. Its totient is φ = 172352112.

The previous prime is 172352111. The next prime is 172352143. The reversal of 172352113 is 311253271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157552704 + 14799409 = 12552^2 + 3847^2 .

It is a cyclic number.

It is not a de Polignac number, because 172352113 - 2¹ = 172352111 is a prime.

Together with 172352111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (172352111) 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, 86176056 + 86176057.

It is an arithmetic number, because the mean of its divisors is an integer number (86176057).

Almost surely, 2^172352113 is an apocalyptic number.

It is an amenable number.

172352113 is a deficient number, since it is larger than the sum of its proper divisors (1).

172352113 is an equidigital number, since it uses as much as digits as its factorization.

172352113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 25.

The square root of 172352113 is about 13128.2943675102. The cubic root of 172352113 is about 556.5090151210.

The spelling of 172352113 in words is "one hundred seventy-two million, three hundred fifty-two thousand, one hundred thirteen".