315449933 has 2 divisors, whose sum is σ = 315449934. Its totient is φ = 315449932.

The previous prime is 315449929. The next prime is 315449969. The reversal of 315449933 is 339944513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 223711849 + 91738084 = 14957^2 + 9578^2 .

It is a cyclic number.

It is not a de Polignac number, because 315449933 - 2² = 315449929 is a prime.

It is a super-5 number, since 5×315449933⁵ (a number of 44 digits) contains 55555 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315449903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157724966 + 157724967.

It is an arithmetic number, because the mean of its divisors is an integer number (157724967).

Almost surely, 2^315449933 is an apocalyptic number.

It is an amenable number.

315449933 is a deficient number, since it is larger than the sum of its proper divisors (1).

315449933 is an equidigital number, since it uses as much as digits as its factorization.

315449933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 41.

The square root of 315449933 is about 17760.9102525743. The cubic root of 315449933 is about 680.7330136216.

The spelling of 315449933 in words is "three hundred fifteen million, four hundred forty-nine thousand, nine hundred thirty-three".