172475071 has 2 divisors, whose sum is σ = 172475072. Its totient is φ = 172475070.

The previous prime is 172475063. The next prime is 172475077. The reversal of 172475071 is 170574271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172475071 - 2³ = 172475063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172475077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86237535 + 86237536.

It is an arithmetic number, because the mean of its divisors is an integer number (86237536).

Almost surely, 2^172475071 is an apocalyptic number.

172475071 is a deficient number, since it is larger than the sum of its proper divisors (1).

172475071 is an equidigital number, since it uses as much as digits as its factorization.

172475071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13720, while the sum is 34.

The square root of 172475071 is about 13132.9764714630. The cubic root of 172475071 is about 556.6413236617.

The spelling of 172475071 in words is "one hundred seventy-two million, four hundred seventy-five thousand, seventy-one".