1313486258 has 30 divisors (see below), whose sum is σ = 2302867359. Its totient is φ = 561846348.

The previous prime is 1313486243. The next prime is 1313486269. The reversal of 1313486258 is 8526843131.

It can be written as a sum of positive squares in only one way, i.e., 656743129 + 656743129 = 25627^2 + 25627^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=25627.

It is a super-2 number, since 2×1313486258² = 3450492299909685128, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2511185 + ... + 2511707.

Almost surely, 2^1313486258 is an apocalyptic number.

1313486258 is a deficient number, since it is larger than the sum of its proper divisors (989381101).

1313486258 is an frugal number, since it uses more digits than its factorization.

1313486258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 532 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 1313486258 is about 36242.0509629353. The cubic root of 1313486258 is about 1095.1539598507.

The spelling of 1313486258 in words is "one billion, three hundred thirteen million, four hundred eighty-six thousand, two hundred fifty-eight".