315460661 has 2 divisors, whose sum is σ = 315460662. Its totient is φ = 315460660.

The previous prime is 315460643. The next prime is 315460679. The reversal of 315460661 is 166064513.

It is a balanced prime because it is at equal distance from previous prime (315460643) and next prime (315460679).

It can be written as a sum of positive squares in only one way, i.e., 315062500 + 398161 = 17750^2 + 631^2 .

It is a cyclic number.

It is not a de Polignac number, because 315460661 - 2¹⁸ = 315198517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315460961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157730330 + 157730331.

It is an arithmetic number, because the mean of its divisors is an integer number (157730331).

Almost surely, 2^315460661 is an apocalyptic number.

It is an amenable number.

315460661 is a deficient number, since it is larger than the sum of its proper divisors (1).

315460661 is an equidigital number, since it uses as much as digits as its factorization.

315460661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 315460661 is about 17761.2122615547. The cubic root of 315460661 is about 680.7407304521.

The spelling of 315460661 in words is "three hundred fifteen million, four hundred sixty thousand, six hundred sixty-one".