172745253 has 12 divisors (see below), whose sum is σ = 249665728. Its totient is φ = 115096680.

The previous prime is 172745219. The next prime is 172745269. The reversal of 172745253 is 352547271.

It is not a de Polignac number, because 172745253 - 2⁸ = 172744997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172745453) 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 11 ways as a sum of consecutive naturals, for example, 14676 + ... + 23682.

Almost surely, 2^172745253 is an apocalyptic number.

It is an amenable number.

172745253 is a deficient number, since it is larger than the sum of its proper divisors (76920475).

172745253 is a wasteful number, since it uses less digits than its factorization.

172745253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144 (or 11141 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 172745253 is about 13143.2588424637. The cubic root of 172745253 is about 556.9318313518.

The spelling of 172745253 in words is "one hundred seventy-two million, seven hundred forty-five thousand, two hundred fifty-three".