252745144 has 32 divisors (see below), whose sum is σ = 507312000. Its totient is φ = 117688032.

The previous prime is 252745133. The next prime is 252745151. The reversal of 252745144 is 441547252.

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 7 ways as a sum of consecutive naturals, for example, 5124 + ... + 23059.

It is an arithmetic number, because the mean of its divisors is an integer number (15853500).

Almost surely, 2^252745144 is an apocalyptic number.

It is an amenable number.

252745144 is an abundant number, since it is smaller than the sum of its proper divisors (254566856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

252745144 is a wasteful number, since it uses less digits than its factorization.

252745144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28267 (or 28263 counting only the distinct ones).

The product of its digits is 44800, while the sum is 34.

The square root of 252745144 is about 15897.9603723245. The cubic root of 252745144 is about 632.2579129469.

The spelling of 252745144 in words is "two hundred fifty-two million, seven hundred forty-five thousand, one hundred forty-four".