1312432253 has 4 divisors (see below), whose sum is σ = 1431744288. Its totient is φ = 1193120220.

The previous prime is 1312432229. The next prime is 1312432307. The reversal of 1312432253 is 3522342131.

It is a happy number.

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 1312432253 - 2¹⁶ = 1312366717 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 (1312432553) 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, 59656001 + ... + 59656022.

It is an arithmetic number, because the mean of its divisors is an integer number (357936072).

Almost surely, 2^1312432253 is an apocalyptic number.

It is an amenable number.

1312432253 is a deficient number, since it is larger than the sum of its proper divisors (119312035).

1312432253 is a wasteful number, since it uses less digits than its factorization.

1312432253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119312034.

The product of its digits is 4320, while the sum is 26.

The square root of 1312432253 is about 36227.5068559789. The cubic root of 1312432253 is about 1094.8609465981.

Adding to 1312432253 its reverse (3522342131), we get a palindrome (4834774384).

The spelling of 1312432253 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, two hundred fifty-three".