172360361 has 2 divisors, whose sum is σ = 172360362. Its totient is φ = 172360360.

The previous prime is 172360333. The next prime is 172360379. The reversal of 172360361 is 163063271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157653136 + 14707225 = 12556^2 + 3835^2 .

It is a cyclic number.

It is not a de Polignac number, because 172360361 - 2¹⁰ = 172359337 is a prime.

It is not a weakly prime, because it can be changed into another prime (172360861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86180180 + 86180181.

It is an arithmetic number, because the mean of its divisors is an integer number (86180181).

Almost surely, 2^172360361 is an apocalyptic number.

It is an amenable number.

172360361 is a deficient number, since it is larger than the sum of its proper divisors (1).

172360361 is an equidigital number, since it uses as much as digits as its factorization.

172360361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 172360361 is about 13128.6084944293. The cubic root of 172360361 is about 556.5178923222.

The spelling of 172360361 in words is "one hundred seventy-two million, three hundred sixty thousand, three hundred sixty-one".