1252354231 has 4 divisors (see below), whose sum is σ = 1281478792. Its totient is φ = 1223229672.

The previous prime is 1252354223. The next prime is 1252354267. The reversal of 1252354231 is 1324532521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1252354231 - 2³ = 1252354223 is a prime.

It is a super-2 number, since 2×1252354231² = 3136782239807202722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1252354231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252354211) 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, 14562216 + ... + 14562301.

It is an arithmetic number, because the mean of its divisors is an integer number (320369698).

Almost surely, 2^1252354231 is an apocalyptic number.

1252354231 is a deficient number, since it is larger than the sum of its proper divisors (29124561).

1252354231 is an equidigital number, since it uses as much as digits as its factorization.

1252354231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29124560.

The product of its digits is 7200, while the sum is 28.

The square root of 1252354231 is about 35388.6172518792. The cubic root of 1252354231 is about 1077.8931924910.

Adding to 1252354231 its reverse (1324532521), we get a palindrome (2576886752).

The spelling of 1252354231 in words is "one billion, two hundred fifty-two million, three hundred fifty-four thousand, two hundred thirty-one".