2315405431 has 4 divisors (see below), whose sum is σ = 2316011152. Its totient is φ = 2314799712.

The previous prime is 2315405429. The next prime is 2315405447. The reversal of 2315405431 is 1345045132.

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 2315405431 - 2¹ = 2315405429 is a prime.

It is a super-2 number, since 2×2315405431² = 10722204619808591522, 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 2315405431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315409431) 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, 297090 + ... + 304783.

It is an arithmetic number, because the mean of its divisors is an integer number (579002788).

Almost surely, 2^2315405431 is an apocalyptic number.

2315405431 is a deficient number, since it is larger than the sum of its proper divisors (605721).

2315405431 is an equidigital number, since it uses as much as digits as its factorization.

2315405431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605720.

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

The square root of 2315405431 is about 48118.6599044487. The cubic root of 2315405431 is about 1322.9467057769.

The spelling of 2315405431 in words is "two billion, three hundred fifteen million, four hundred five thousand, four hundred thirty-one".