172248903 has 16 divisors (see below), whose sum is σ = 255414240. Its totient is φ = 114728832.

The previous prime is 172248877. The next prime is 172248931. The reversal of 172248903 is 309842271.

172248903 is a `hidden beast` number, since 172 + 2 + 489 + 0 + 3 = 666.

It is not a de Polignac number, because 172248903 - 2¹⁰ = 172247879 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172248983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38175 + ... + 42447.

It is an arithmetic number, because the mean of its divisors is an integer number (15963390).

Almost surely, 2^172248903 is an apocalyptic number.

172248903 is a deficient number, since it is larger than the sum of its proper divisors (83165337).

172248903 is a wasteful number, since it uses less digits than its factorization.

172248903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775 (or 5769 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 172248903 is about 13124.3629559686. The cubic root of 172248903 is about 556.3979077618.

It can be divided in two parts, 1722 and 48903, that added together give a 4-th power (50625 = 15⁴).

The spelling of 172248903 in words is "one hundred seventy-two million, two hundred forty-eight thousand, nine hundred three".