315119549 has 2 divisors, whose sum is σ = 315119550. Its totient is φ = 315119548.

The previous prime is 315119521. The next prime is 315119561. The reversal of 315119549 is 945911513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269124025 + 45995524 = 16405^2 + 6782^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-315119549 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315119569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157559774 + 157559775.

It is an arithmetic number, because the mean of its divisors is an integer number (157559775).

Almost surely, 2^315119549 is an apocalyptic number.

It is an amenable number.

315119549 is a deficient number, since it is larger than the sum of its proper divisors (1).

315119549 is an equidigital number, since it uses as much as digits as its factorization.

315119549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24300, while the sum is 38.

The square root of 315119549 is about 17751.6069413448. The cubic root of 315119549 is about 680.4952771537.

The spelling of 315119549 in words is "three hundred fifteen million, one hundred nineteen thousand, five hundred forty-nine".