315606481 has 2 divisors, whose sum is σ = 315606482. Its totient is φ = 315606480.

The previous prime is 315606469. The next prime is 315606493. The reversal of 315606481 is 184606513.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (315606469) and next prime (315606493).

It can be written as a sum of positive squares in only one way, i.e., 241491600 + 74114881 = 15540^2 + 8609^2 .

It is a cyclic number.

It is not a de Polignac number, because 315606481 - 2⁷ = 315606353 is a prime.

It is a super-2 number, since 2×315606481² = 199214901698406722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (315606461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157803240 + 157803241.

It is an arithmetic number, because the mean of its divisors is an integer number (157803241).

Almost surely, 2^315606481 is an apocalyptic number.

It is an amenable number.

315606481 is a deficient number, since it is larger than the sum of its proper divisors (1).

315606481 is an equidigital number, since it uses as much as digits as its factorization.

315606481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 315606481 is about 17765.3167998772. The cubic root of 315606481 is about 680.8456038795.

The spelling of 315606481 in words is "three hundred fifteen million, six hundred six thousand, four hundred eighty-one".