1315238456 has 32 divisors (see below), whose sum is σ = 2984156640. Its totient is φ = 530515968.

The previous prime is 1315238437. The next prime is 1315238489. The reversal of 1315238456 is 6548325131.

It is a happy number.

It is a super-2 number, since 2×1315238456² = 3459704392282527872, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689825 + ... + 691728.

It is an arithmetic number, because the mean of its divisors is an integer number (93254895).

Almost surely, 2^1315238456 is an apocalyptic number.

It is an amenable number.

1315238456 is an abundant number, since it is smaller than the sum of its proper divisors (1668918184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315238456 is a wasteful number, since it uses less digits than its factorization.

1315238456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1381583 (or 1381579 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 1315238456 is about 36266.2164555389. The cubic root of 1315238456 is about 1095.6407239646.

The spelling of 1315238456 in words is "one billion, three hundred fifteen million, two hundred thirty-eight thousand, four hundred fifty-six".