172823103 has 12 divisors (see below), whose sum is σ = 250942848. Its totient is φ = 114611040.

The previous prime is 172823099. The next prime is 172823111. The reversal of 172823103 is 301328271.

172823103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172823103 - 2² = 172823099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172823113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48550 + ... + 51987.

It is an arithmetic number, because the mean of its divisors is an integer number (20911904).

Almost surely, 2^172823103 is an apocalyptic number.

172823103 is a deficient number, since it is larger than the sum of its proper divisors (78119745).

172823103 is a wasteful number, since it uses less digits than its factorization.

172823103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100734 (or 100731 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 172823103 is about 13146.2201031323. The cubic root of 172823103 is about 557.0154817576.

The spelling of 172823103 in words is "one hundred seventy-two million, eight hundred twenty-three thousand, one hundred three".