1315421499 has 16 divisors (see below), whose sum is σ = 2006031872. Its totient is φ = 751076928.

The previous prime is 1315421467. The next prime is 1315421531. The reversal of 1315421499 is 9941245131.

It is an interprime number because it is at equal distance from previous prime (1315421467) and next prime (1315421531).

It is not a de Polignac number, because 1315421499 - 2⁵ = 1315421467 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1315429499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3327 + ... + 51399.

It is an arithmetic number, because the mean of its divisors is an integer number (125376992).

Almost surely, 2^1315421499 is an apocalyptic number.

1315421499 is a deficient number, since it is larger than the sum of its proper divisors (690610373).

1315421499 is a wasteful number, since it uses less digits than its factorization.

1315421499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49386.

The product of its digits is 38880, while the sum is 39.

The square root of 1315421499 is about 36268.7399698418. The cubic root of 1315421499 is about 1095.6915487311.

The spelling of 1315421499 in words is "one billion, three hundred fifteen million, four hundred twenty-one thousand, four hundred ninety-nine".