252129926 has 8 divisors (see below), whose sum is σ = 378275184. Its totient is φ = 126038200.

The previous prime is 252129919. The next prime is 252129937. The reversal of 252129926 is 629921252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 252129926.

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, 1871 + ... + 22533.

It is an arithmetic number, because the mean of its divisors is an integer number (47284398).

Almost surely, 2^252129926 is an apocalyptic number.

252129926 is a deficient number, since it is larger than the sum of its proper divisors (126145258).

252129926 is a wasteful number, since it uses less digits than its factorization.

252129926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26766.

The product of its digits is 38880, while the sum is 38.

The square root of 252129926 is about 15878.5996233925. The cubic root of 252129926 is about 631.7444939375.

The spelling of 252129926 in words is "two hundred fifty-two million, one hundred twenty-nine thousand, nine hundred twenty-six".