1312745356 has 18 divisors (see below), whose sum is σ = 2487614892. Its totient is φ = 605882160.

The previous prime is 1312745353. The next prime is 1312745363. The reversal of 1312745356 is 6535472131.

It is not an unprimeable number, because it can be changed into a prime (1312745353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 970290 + ... + 971641.

Almost surely, 2^1312745356 is an apocalyptic number.

It is an amenable number.

1312745356 is a deficient number, since it is larger than the sum of its proper divisors (1174869536).

1312745356 is a wasteful number, since it uses less digits than its factorization.

1312745356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941961 (or 1941946 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 1312745356 is about 36231.8279417421. The cubic root of 1312745356 is about 1094.9480055655.

The spelling of 1312745356 in words is "one billion, three hundred twelve million, seven hundred forty-five thousand, three hundred fifty-six".