315250651 has 2 divisors, whose sum is σ = 315250652. Its totient is φ = 315250650.

The previous prime is 315250613. The next prime is 315250697. The reversal of 315250651 is 156052513.

It is a weak prime.

It is an emirp because it is prime and its reverse (156052513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315250651 - 2⁹ = 315250139 is a prime.

It is a super-3 number, since 3×315250651³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (315250151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157625325 + 157625326.

It is an arithmetic number, because the mean of its divisors is an integer number (157625326).

Almost surely, 2^315250651 is an apocalyptic number.

315250651 is a deficient number, since it is larger than the sum of its proper divisors (1).

315250651 is an equidigital number, since it uses as much as digits as its factorization.

315250651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 315250651 is about 17755.2992371292. The cubic root of 315250651 is about 680.5896349117.

The spelling of 315250651 in words is "three hundred fifteen million, two hundred fifty thousand, six hundred fifty-one".