315321250747 has 2 divisors, whose sum is σ = 315321250748. Its totient is φ = 315321250746.

The previous prime is 315321250729. The next prime is 315321250799. The reversal of 315321250747 is 747052123513.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (747052123513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315321250747 - 2³¹ = 313173767099 is a prime.

It is not a weakly prime, because it can be changed into another prime (315321250847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157660625373 + 157660625374.

It is an arithmetic number, because the mean of its divisors is an integer number (157660625374).

Almost surely, 2^315321250747 is an apocalyptic number.

315321250747 is a deficient number, since it is larger than the sum of its proper divisors (1).

315321250747 is an equidigital number, since it uses as much as digits as its factorization.

315321250747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 176400, while the sum is 40.

The spelling of 315321250747 in words is "three hundred fifteen billion, three hundred twenty-one million, two hundred fifty thousand, seven hundred forty-seven".