1315872788 has 6 divisors (see below), whose sum is σ = 2302777386. Its totient is φ = 657936392.

The previous prime is 1315872769. The next prime is 1315872791. The reversal of 1315872788 is 8872785131.

It can be written as a sum of positive squares in only one way, i.e., 700237444 + 615635344 = 26462^2 + 24812^2 .

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 as a sum of consecutive naturals, namely, 164484095 + ... + 164484102.

It is an arithmetic number, because the mean of its divisors is an integer number (383796231).

Almost surely, 2^1315872788 is an apocalyptic number.

It is an amenable number.

1315872788 is a deficient number, since it is larger than the sum of its proper divisors (986904598).

1315872788 is a wasteful number, since it uses less digits than its factorization.

1315872788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328968201 (or 328968199 counting only the distinct ones).

The product of its digits is 752640, while the sum is 50.

The square root of 1315872788 is about 36274.9608959128. The cubic root of 1315872788 is about 1095.8168360775.

The spelling of 1315872788 in words is "one billion, three hundred fifteen million, eight hundred seventy-two thousand, seven hundred eighty-eight".