315501941 has 2 divisors, whose sum is σ = 315501942. Its totient is φ = 315501940.

The previous prime is 315501899. The next prime is 315501947. The reversal of 315501941 is 149105513.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224700100 + 90801841 = 14990^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 315501941 - 2⁶ = 315501877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315501947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157750970 + 157750971.

It is an arithmetic number, because the mean of its divisors is an integer number (157750971).

Almost surely, 2^315501941 is an apocalyptic number.

It is an amenable number.

315501941 is a deficient number, since it is larger than the sum of its proper divisors (1).

315501941 is an equidigital number, since it uses as much as digits as its factorization.

315501941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 315501941 is about 17762.3743063815. The cubic root of 315501941 is about 680.7704222174.

The spelling of 315501941 in words is "three hundred fifteen million, five hundred one thousand, nine hundred forty-one".