1312796835 has 128 divisors (see below), whose sum is σ = 2823045120. Its totient is φ = 566092800.

The previous prime is 1312796827. The next prime is 1312796839. The reversal of 1312796835 is 5386972131.

It is not a de Polignac number, because 1312796835 - 2³ = 1312796827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1312796839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1200549 + ... + 1201641.

It is an arithmetic number, because the mean of its divisors is an integer number (22055040).

Almost surely, 2^1312796835 is an apocalyptic number.

1312796835 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1312796835 is an abundant number, since it is smaller than the sum of its proper divisors (1510248285).

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

1312796835 is a wasteful number, since it uses less digits than its factorization.

1312796835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1180 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 1312796835 is about 36232.5383460778. The cubic root of 1312796835 is about 1094.9623180878.

The spelling of 1312796835 in words is "one billion, three hundred twelve million, seven hundred ninety-six thousand, eight hundred thirty-five".