252226139 has 8 divisors (see below), whose sum is σ = 275948400. Its totient is φ = 228636000.

The previous prime is 252226097. The next prime is 252226141. The reversal of 252226139 is 931622252.

252226139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 252226139 - 2¹² = 252222043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (252225139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29012 + ... + 36689.

It is an arithmetic number, because the mean of its divisors is an integer number (34493550).

Almost surely, 2^252226139 is an apocalyptic number.

252226139 is a deficient number, since it is larger than the sum of its proper divisors (23722261).

252226139 is a wasteful number, since it uses less digits than its factorization.

252226139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66061.

The product of its digits is 12960, while the sum is 32.

The square root of 252226139 is about 15881.6289781622. The cubic root of 252226139 is about 631.8248418016.

The spelling of 252226139 in words is "two hundred fifty-two million, two hundred twenty-six thousand, one hundred thirty-nine".