315952849 has 2 divisors, whose sum is σ = 315952850. Its totient is φ = 315952848.

The previous prime is 315952831. The next prime is 315952913. The reversal of 315952849 is 948259513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 277822224 + 38130625 = 16668^2 + 6175^2 .

It is an emirp because it is prime and its reverse (948259513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315952849 - 2⁹ = 315952337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 315952799 and 315952808.

It is not a weakly prime, because it can be changed into another prime (315953849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157976424 + 157976425.

It is an arithmetic number, because the mean of its divisors is an integer number (157976425).

Almost surely, 2^315952849 is an apocalyptic number.

It is an amenable number.

315952849 is a deficient number, since it is larger than the sum of its proper divisors (1).

315952849 is an equidigital number, since it uses as much as digits as its factorization.

315952849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 46.

The square root of 315952849 is about 17775.0625596649. The cubic root of 315952849 is about 681.0945815647.

The spelling of 315952849 in words is "three hundred fifteen million, nine hundred fifty-two thousand, eight hundred forty-nine".