2815257349 has 2 divisors, whose sum is σ = 2815257350. Its totient is φ = 2815257348.

The previous prime is 2815257301. The next prime is 2815257353. The reversal of 2815257349 is 9437525182.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2395417249 + 419840100 = 48943^2 + 20490^2 .

It is a cyclic number.

It is not a de Polignac number, because 2815257349 - 2¹⁷ = 2815126277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2815257299 and 2815257308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2815257149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1407628674 + 1407628675.

It is an arithmetic number, because the mean of its divisors is an integer number (1407628675).

Almost surely, 2^2815257349 is an apocalyptic number.

It is an amenable number.

2815257349 is a deficient number, since it is larger than the sum of its proper divisors (1).

2815257349 is an equidigital number, since it uses as much as digits as its factorization.

2815257349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 2815257349 is about 53058.9987561017. The cubic root of 2815257349 is about 1412.0151841666.

The spelling of 2815257349 in words is "two billion, eight hundred fifteen million, two hundred fifty-seven thousand, three hundred forty-nine".