1312793895 has 64 divisors (see below), whose sum is σ = 2536427520. Its totient is φ = 567049728.

The previous prime is 1312793893. The next prime is 1312793897. The reversal of 1312793895 is 5983972131.

It is an interprime number because it is at equal distance from previous prime (1312793893) and next prime (1312793897).

It is not a de Polignac number, because 1312793895 - 2¹ = 1312793893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312793893) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138529 + ... + 147701.

It is an arithmetic number, because the mean of its divisors is an integer number (39631680).

Almost surely, 2^1312793895 is an apocalyptic number.

1312793895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1312793895 is a deficient number, since it is larger than the sum of its proper divisors (1223633625).

1312793895 is a wasteful number, since it uses less digits than its factorization.

1312793895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9264.

The product of its digits is 408240, while the sum is 48.

The square root of 1312793895 is about 36232.4977747878. The cubic root of 1312793895 is about 1094.9615007002.

The spelling of 1312793895 in words is "one billion, three hundred twelve million, seven hundred ninety-three thousand, eight hundred ninety-five".