315283049 has 2 divisors, whose sum is σ = 315283050. Its totient is φ = 315283048.

The previous prime is 315283043. The next prime is 315283109. The reversal of 315283049 is 940382513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191628649 + 123654400 = 13843^2 + 11120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315283049 is a prime.

It is not a weakly prime, because it can be changed into another prime (315283043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157641524 + 157641525.

It is an arithmetic number, because the mean of its divisors is an integer number (157641525).

Almost surely, 2^315283049 is an apocalyptic number.

It is an amenable number.

315283049 is a deficient number, since it is larger than the sum of its proper divisors (1).

315283049 is an equidigital number, since it uses as much as digits as its factorization.

315283049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 315283049 is about 17756.2115610284. The cubic root of 315283049 is about 680.6129486227.

The spelling of 315283049 in words is "three hundred fifteen million, two hundred eighty-three thousand, forty-nine".