1315039477 has 2 divisors, whose sum is σ = 1315039478. Its totient is φ = 1315039476.

The previous prime is 1315039441. The next prime is 1315039483. The reversal of 1315039477 is 7749305131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 679697041 + 635342436 = 26071^2 + 25206^2 .

It is a cyclic number.

It is not a de Polignac number, because 1315039477 - 2¹⁵ = 1315006709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315039417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657519738 + 657519739.

It is an arithmetic number, because the mean of its divisors is an integer number (657519739).

Almost surely, 2^1315039477 is an apocalyptic number.

It is an amenable number.

1315039477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315039477 is an equidigital number, since it uses as much as digits as its factorization.

1315039477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 1315039477 is about 36263.4730410643. The cubic root of 1315039477 is about 1095.5854689677.

The spelling of 1315039477 in words is "one billion, three hundred fifteen million, thirty-nine thousand, four hundred seventy-seven".