1315143864 has 80 divisors (see below), whose sum is σ = 3843821520. Its totient is φ = 419316480.

The previous prime is 1315143857. The next prime is 1315143877. The reversal of 1315143864 is 4683415131.

1315143864 is a `hidden beast` number, since 13 + 151 + 438 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 29217 + ... + 59024.

It is an arithmetic number, because the mean of its divisors is an integer number (48047769).

Almost surely, 2^1315143864 is an apocalyptic number.

It is an amenable number.

1315143864 is an abundant number, since it is smaller than the sum of its proper divisors (2528677656).

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

1315143864 is a wasteful number, since it uses less digits than its factorization.

1315143864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88282 (or 88269 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1315143864 is about 36264.9122982533. The cubic root of 1315143864 is about 1095.6144571607.

Adding to 1315143864 its reverse (4683415131), we get a palindrome (5998558995).

The spelling of 1315143864 in words is "one billion, three hundred fifteen million, one hundred forty-three thousand, eight hundred sixty-four".