252143331 has 8 divisors (see below), whose sum is σ = 366753984. Its totient is φ = 152814120.

The previous prime is 252143323. The next prime is 252143347. The reversal of 252143331 is 133341252.

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

It is not a de Polignac number, because 252143331 - 2³ = 252143323 is a prime.

It is a super-2 number, since 2×252143331² = 127152518735551122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (252143321) 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, 3820321 + ... + 3820386.

It is an arithmetic number, because the mean of its divisors is an integer number (45844248).

Almost surely, 2^252143331 is an apocalyptic number.

252143331 is a deficient number, since it is larger than the sum of its proper divisors (114610653).

252143331 is a wasteful number, since it uses less digits than its factorization.

252143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7640721.

The product of its digits is 2160, while the sum is 24.

The square root of 252143331 is about 15879.0217267941. The cubic root of 252143331 is about 631.7556897324.

Adding to 252143331 its reverse (133341252), we get a palindrome (385484583).

The spelling of 252143331 in words is "two hundred fifty-two million, one hundred forty-three thousand, three hundred thirty-one".