315878041 has 2 divisors, whose sum is σ = 315878042. Its totient is φ = 315878040.

The previous prime is 315878029. The next prime is 315878089. The reversal of 315878041 is 140878513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313998400 + 1879641 = 17720^2 + 1371^2 .

It is an emirp because it is prime and its reverse (140878513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315878041 - 2²⁷ = 181660313 is a prime.

It is not a weakly prime, because it can be changed into another prime (315878141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157939020 + 157939021.

It is an arithmetic number, because the mean of its divisors is an integer number (157939021).

Almost surely, 2^315878041 is an apocalyptic number.

It is an amenable number.

315878041 is a deficient number, since it is larger than the sum of its proper divisors (1).

315878041 is an equidigital number, since it uses as much as digits as its factorization.

315878041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 315878041 is about 17772.9581387005. The cubic root of 315878041 is about 681.0408231792.

The spelling of 315878041 in words is "three hundred fifteen million, eight hundred seventy-eight thousand, forty-one".