1315418879 has 2 divisors, whose sum is σ = 1315418880. Its totient is φ = 1315418878.

The previous prime is 1315418873. The next prime is 1315418899. The reversal of 1315418879 is 9788145131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315418879 - 2²⁰ = 1314370303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315418873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657709439 + 657709440.

It is an arithmetic number, because the mean of its divisors is an integer number (657709440).

Almost surely, 2^1315418879 is an apocalyptic number.

1315418879 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315418879 is an equidigital number, since it uses as much as digits as its factorization.

1315418879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 47.

The square root of 1315418879 is about 36268.7038505652. The cubic root of 1315418879 is about 1095.6908212802.

The spelling of 1315418879 in words is "one billion, three hundred fifteen million, four hundred eighteen thousand, eight hundred seventy-nine".