172275403 has 2 divisors, whose sum is σ = 172275404. Its totient is φ = 172275402.

The previous prime is 172275391. The next prime is 172275409. The reversal of 172275403 is 304572271.

172275403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 172275403 - 2⁹ = 172274891 is a prime.

It is not a weakly prime, because it can be changed into another prime (172275409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86137701 + 86137702.

It is an arithmetic number, because the mean of its divisors is an integer number (86137702).

Almost surely, 2^172275403 is an apocalyptic number.

172275403 is a deficient number, since it is larger than the sum of its proper divisors (1).

172275403 is an equidigital number, since it uses as much as digits as its factorization.

172275403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 172275403 is about 13125.3724899524. The cubic root of 172275403 is about 556.4264397064.

The spelling of 172275403 in words is "one hundred seventy-two million, two hundred seventy-five thousand, four hundred three".