315441047 has 2 divisors, whose sum is σ = 315441048. Its totient is φ = 315441046.

The previous prime is 315441031. The next prime is 315441053. The reversal of 315441047 is 740144513.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 315441047 - 2⁴ = 315441031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315441547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157720523 + 157720524.

It is an arithmetic number, because the mean of its divisors is an integer number (157720524).

Almost surely, 2^315441047 is an apocalyptic number.

315441047 is a deficient number, since it is larger than the sum of its proper divisors (1).

315441047 is an equidigital number, since it uses as much as digits as its factorization.

315441047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 315441047 is about 17760.6600947149. The cubic root of 315441047 is about 680.7266216401.

The spelling of 315441047 in words is "three hundred fifteen million, four hundred forty-one thousand, forty-seven".