315061501 has 2 divisors, whose sum is σ = 315061502. Its totient is φ = 315061500.

The previous prime is 315061471. The next prime is 315061517. The reversal of 315061501 is 105160513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294946276 + 20115225 = 17174^2 + 4485^2 .

It is a cyclic number.

It is not a de Polignac number, because 315061501 - 2⁹ = 315060989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315061601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157530750 + 157530751.

It is an arithmetic number, because the mean of its divisors is an integer number (157530751).

Almost surely, 2^315061501 is an apocalyptic number.

It is an amenable number.

315061501 is a deficient number, since it is larger than the sum of its proper divisors (1).

315061501 is an equidigital number, since it uses as much as digits as its factorization.

315061501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 315061501 is about 17749.9718591326. The cubic root of 315061501 is about 680.4534900333.

The spelling of 315061501 in words is "three hundred fifteen million, sixty-one thousand, five hundred one".