315622453 has 2 divisors, whose sum is σ = 315622454. Its totient is φ = 315622452.

The previous prime is 315622423. The next prime is 315622481. The reversal of 315622453 is 354226513.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232776049 + 82846404 = 15257^2 + 9102^2 .

It is an emirp because it is prime and its reverse (354226513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315622453 - 2⁵ = 315622421 is a prime.

It is equal to p_17051845 and since 315622453 and 17051845 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315622423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157811226 + 157811227.

It is an arithmetic number, because the mean of its divisors is an integer number (157811227).

Almost surely, 2^315622453 is an apocalyptic number.

It is an amenable number.

315622453 is a deficient number, since it is larger than the sum of its proper divisors (1).

315622453 is an equidigital number, since it uses as much as digits as its factorization.

315622453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

The square root of 315622453 is about 17765.7663217774. The cubic root of 315622453 is about 680.8570889442.

Adding to 315622453 its reverse (354226513), we get a palindrome (669848966).

The spelling of 315622453 in words is "three hundred fifteen million, six hundred twenty-two thousand, four hundred fifty-three".