172380227 has 2 divisors, whose sum is σ = 172380228. Its totient is φ = 172380226.

The previous prime is 172380209. The next prime is 172380281. The reversal of 172380227 is 722083271.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 172380227 - 2⁸ = 172379971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 172380193 and 172380202.

It is not a weakly prime, because it can be changed into another prime (172380427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86190113 + 86190114.

It is an arithmetic number, because the mean of its divisors is an integer number (86190114).

Almost surely, 2^172380227 is an apocalyptic number.

172380227 is a deficient number, since it is larger than the sum of its proper divisors (1).

172380227 is an equidigital number, since it uses as much as digits as its factorization.

172380227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 172380227 is about 13129.3650646176. The cubic root of 172380227 is about 556.5392726435.

The spelling of 172380227 in words is "one hundred seventy-two million, three hundred eighty thousand, two hundred twenty-seven".