315224501 has 2 divisors, whose sum is σ = 315224502. Its totient is φ = 315224500.

The previous prime is 315224473. The next prime is 315224521. The reversal of 315224501 is 105422513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184144900 + 131079601 = 13570^2 + 11449^2 .

It is a cyclic number.

It is not a de Polignac number, because 315224501 - 2¹⁸ = 314962357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_17031470 and since 315224501 and 17031470 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 (315224521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157612250 + 157612251.

It is an arithmetic number, because the mean of its divisors is an integer number (157612251).

Almost surely, 2^315224501 is an apocalyptic number.

It is an amenable number.

315224501 is a deficient number, since it is larger than the sum of its proper divisors (1).

315224501 is an equidigital number, since it uses as much as digits as its factorization.

315224501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 315224501 is about 17754.5628219903. The cubic root of 315224501 is about 680.5708161179.

The spelling of 315224501 in words is "three hundred fifteen million, two hundred twenty-four thousand, five hundred one".