252105229 has 4 divisors (see below), whose sum is σ = 252194976. Its totient is φ = 252015484.

The previous prime is 252105209. The next prime is 252105239. The reversal of 252105229 is 922501252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 252105229 - 2¹³ = 252097037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252105197 and 252105206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252105209) by changing a digit.

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, 40519 + ... + 46324.

It is an arithmetic number, because the mean of its divisors is an integer number (63048744).

Almost surely, 2^252105229 is an apocalyptic number.

It is an amenable number.

252105229 is a deficient number, since it is larger than the sum of its proper divisors (89747).

252105229 is an equidigital number, since it uses as much as digits as its factorization.

252105229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89746.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 252105229 is about 15877.8219224174. The cubic root of 252105229 is about 631.7238660765.

The spelling of 252105229 in words is "two hundred fifty-two million, one hundred five thousand, two hundred twenty-nine".