1312745258 has 8 divisors (see below), whose sum is σ = 2148128640. Its totient is φ = 596702380.

The previous prime is 1312745243. The next prime is 1312745261. The reversal of 1312745258 is 8525472131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1312745258² = 3446600224802973128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29835098 + ... + 29835141.

It is an arithmetic number, because the mean of its divisors is an integer number (268516080).

Almost surely, 2^1312745258 is an apocalyptic number.

1312745258 is a deficient number, since it is larger than the sum of its proper divisors (835383382).

1312745258 is a wasteful number, since it uses less digits than its factorization.

1312745258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59670252.

The product of its digits is 67200, while the sum is 38.

The square root of 1312745258 is about 36231.8265893399. The cubic root of 1312745258 is about 1094.9479783185.

It can be divided in two parts, 13127 and 45258, that added together give a palindrome (58385).

The spelling of 1312745258 in words is "one billion, three hundred twelve million, seven hundred forty-five thousand, two hundred fifty-eight".