252222141 has 4 divisors (see below), whose sum is σ = 336296192. Its totient is φ = 168148092.

The previous prime is 252222079. The next prime is 252222151. The reversal of 252222141 is 141222252.

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 not a de Polignac number, because 252222141 - 2²¹ = 250124989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252222151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42037021 + ... + 42037026.

It is an arithmetic number, because the mean of its divisors is an integer number (84074048).

Almost surely, 2^252222141 is an apocalyptic number.

It is an amenable number.

252222141 is a deficient number, since it is larger than the sum of its proper divisors (84074051).

252222141 is an equidigital number, since it uses as much as digits as its factorization.

252222141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84074050.

The product of its digits is 640, while the sum is 21.

The square root of 252222141 is about 15881.5031089630. The cubic root of 252222141 is about 631.8215034627.

Adding to 252222141 its reverse (141222252), we get a palindrome (393444393).

The spelling of 252222141 in words is "two hundred fifty-two million, two hundred twenty-two thousand, one hundred forty-one".