252231431 has 8 divisors (see below), whose sum is σ = 271596240. Its totient is φ = 233369728.

The previous prime is 252231389. The next prime is 252231443. The reversal of 252231431 is 134132252.

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 252231431 - 2⁶ = 252231367 is a prime.

It is a super-2 number, since 2×252231431² = 127241389568615522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252231397 and 252231406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252231131) 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, 124736 + ... + 126741.

It is an arithmetic number, because the mean of its divisors is an integer number (33949530).

Almost surely, 2^252231431 is an apocalyptic number.

252231431 is a deficient number, since it is larger than the sum of its proper divisors (19364809).

252231431 is a wasteful number, since it uses less digits than its factorization.

252231431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251553.

The product of its digits is 1440, while the sum is 23.

The square root of 252231431 is about 15881.7955848827. The cubic root of 252231431 is about 631.8292605793.

Adding to 252231431 its reverse (134132252), we get a palindrome (386363683).

The spelling of 252231431 in words is "two hundred fifty-two million, two hundred thirty-one thousand, four hundred thirty-one".