172852245 has 64 divisors (see below), whose sum is σ = 323481600. Its totient is φ = 87405120.

The previous prime is 172852219. The next prime is 172852259. The reversal of 172852245 is 542258271.

It is a happy number.

It is not a de Polignac number, because 172852245 - 2⁵ = 172852213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 555640 + ... + 555950.

It is an arithmetic number, because the mean of its divisors is an integer number (5054400).

Almost surely, 2^172852245 is an apocalyptic number.

172852245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

172852245 is a deficient number, since it is larger than the sum of its proper divisors (150629355).

172852245 is a wasteful number, since it uses less digits than its factorization.

172852245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527 (or 521 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 172852245 is about 13147.3284358458. The cubic root of 172852245 is about 557.0467885922.

The spelling of 172852245 in words is "one hundred seventy-two million, eight hundred fifty-two thousand, two hundred forty-five".