172146052 has 48 divisors (see below), whose sum is σ = 336232512. Its totient is φ = 76602240.

The previous prime is 172146041. The next prime is 172146077. The reversal of 172146052 is 250641271.

It is a self number, because there is not a number n which added to its sum of digits gives 172146052.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251703 + ... + 252385.

It is an arithmetic number, because the mean of its divisors is an integer number (7004844).

Almost surely, 2^172146052 is an apocalyptic number.

It is an amenable number.

172146052 is a deficient number, since it is larger than the sum of its proper divisors (164086460).

172146052 is a wasteful number, since it uses less digits than its factorization.

172146052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 172146052 is about 13120.4440473636. Note that the first 3 decimals coincide. The cubic root of 172146052 is about 556.2871427119.

The spelling of 172146052 in words is "one hundred seventy-two million, one hundred forty-six thousand, fifty-two".