172725044 has 12 divisors (see below), whose sum is σ = 312692100. Its totient is φ = 83384448.

The previous prime is 172725031. The next prime is 172725053. The reversal of 172725044 is 440527271.

It can be written as a sum of positive squares in 2 ways, for example, as 40475044 + 132250000 = 6362^2 + 11500^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 172725044.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 744389 + ... + 744620.

It is an arithmetic number, because the mean of its divisors is an integer number (26057675).

Almost surely, 2^172725044 is an apocalyptic number.

It is an amenable number.

172725044 is a deficient number, since it is larger than the sum of its proper divisors (139967056).

172725044 is a wasteful number, since it uses less digits than its factorization.

172725044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1489042 (or 1489040 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 172725044 is about 13142.4900228229. The cubic root of 172725044 is about 556.9101125219.

The spelling of 172725044 in words is "one hundred seventy-two million, seven hundred twenty-five thousand, forty-four".