2815403231 has 2 divisors, whose sum is σ = 2815403232. Its totient is φ = 2815403230.

The previous prime is 2815403203. The next prime is 2815403233. The reversal of 2815403231 is 1323045182.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2815403231 - 2¹⁰ = 2815402207 is a prime.

It is a super-2 number, since 2×2815403231² = 15852990706250478722, which contains 22 as substring.

Together with 2815403233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2815403194 and 2815403203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2815403233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1407701615 + 1407701616.

It is an arithmetic number, because the mean of its divisors is an integer number (1407701616).

Almost surely, 2^2815403231 is an apocalyptic number.

2815403231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2815403231 is an equidigital number, since it uses as much as digits as its factorization.

2815403231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2815403231 is about 53060.3734532655. The cubic root of 2815403231 is about 1412.0395731793.

The spelling of 2815403231 in words is "two billion, eight hundred fifteen million, four hundred three thousand, two hundred thirty-one".