1315539619 has 2 divisors, whose sum is σ = 1315539620. Its totient is φ = 1315539618.

The previous prime is 1315539607. The next prime is 1315539649. The reversal of 1315539619 is 9169355131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315539619 - 2²³ = 1307151011 is a prime.

It is a super-2 number, since 2×1315539619² = 3461288978317330322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1315539649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657769809 + 657769810.

It is an arithmetic number, because the mean of its divisors is an integer number (657769810).

Almost surely, 2^1315539619 is an apocalyptic number.

1315539619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315539619 is an equidigital number, since it uses as much as digits as its factorization.

1315539619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 43.

The square root of 1315539619 is about 36270.3683328416. The cubic root of 1315539619 is about 1095.7243441031.

The spelling of 1315539619 in words is "one billion, three hundred fifteen million, five hundred thirty-nine thousand, six hundred nineteen".