315850747 has 2 divisors, whose sum is σ = 315850748. Its totient is φ = 315850746.

The previous prime is 315850681. The next prime is 315850783. The reversal of 315850747 is 747058513.

It is a strong prime.

It is an emirp because it is prime and its reverse (747058513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315850747 - 2¹⁵ = 315817979 is a prime.

It is not a weakly prime, because it can be changed into another prime (315850147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157925373 + 157925374.

It is an arithmetic number, because the mean of its divisors is an integer number (157925374).

Almost surely, 2^315850747 is an apocalyptic number.

315850747 is a deficient number, since it is larger than the sum of its proper divisors (1).

315850747 is an equidigital number, since it uses as much as digits as its factorization.

315850747 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 315850747 is about 17772.1902701946. The cubic root of 315850747 is about 681.0212071025.

The spelling of 315850747 in words is "three hundred fifteen million, eight hundred fifty thousand, seven hundred forty-seven".