431252113 has 4 divisors (see below), whose sum is σ = 433135540. Its totient is φ = 429368688.

The previous prime is 431252071. The next prime is 431252137. The reversal of 431252113 is 311252134.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 316590849 + 114661264 = 17793^2 + 10708^2 .

It is a cyclic number.

It is not a de Polignac number, because 431252113 - 2²¹ = 429154961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (431202113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941370 + ... + 941827.

It is an arithmetic number, because the mean of its divisors is an integer number (108283885).

Almost surely, 2^431252113 is an apocalyptic number.

It is an amenable number.

431252113 is a deficient number, since it is larger than the sum of its proper divisors (1883427).

431252113 is a wasteful number, since it uses less digits than its factorization.

431252113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883426.

The product of its digits is 720, while the sum is 22.

The square root of 431252113 is about 20766.6105322944. The cubic root of 431252113 is about 755.5161378713.

The spelling of 431252113 in words is "four hundred thirty-one million, two hundred fifty-two thousand, one hundred thirteen".