1312075394 has 32 divisors (see below), whose sum is σ = 2294784000. Its totient is φ = 551002320.

The previous prime is 1312075393. The next prime is 1312075397. The reversal of 1312075394 is 4935702131.

It is not an unprimeable number, because it can be changed into a prime (1312075393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271007 + ... + 275805.

It is an arithmetic number, because the mean of its divisors is an integer number (71712000).

Almost surely, 2^1312075394 is an apocalyptic number.

1312075394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1312075394 is a deficient number, since it is larger than the sum of its proper divisors (982708606).

1312075394 is a wasteful number, since it uses less digits than its factorization.

1312075394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5198.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1312075394 is about 36222.5812719083. The cubic root of 1312075394 is about 1094.7617042946.

The spelling of 1312075394 in words is "one billion, three hundred twelve million, seventy-five thousand, three hundred ninety-four".