1256116514 has 16 divisors (see below), whose sum is σ = 1923325560. Its totient is φ = 615096960.

The previous prime is 1256116513. The next prime is 1256116523. The reversal of 1256116514 is 4156116521.

It can be written as a sum of positive squares in 4 ways, for example, as 162690025 + 1093426489 = 12755^2 + 33067^2 .

It is not an unprimeable number, because it can be changed into a prime (1256116513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6332 + ... + 50520.

Almost surely, 2^1256116514 is an apocalyptic number.

1256116514 is a deficient number, since it is larger than the sum of its proper divisors (667209046).

1256116514 is a wasteful number, since it uses less digits than its factorization.

1256116514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44485.

The product of its digits is 7200, while the sum is 32.

The square root of 1256116514 is about 35441.7340715716. The cubic root of 1256116514 is about 1078.9715042881.

The spelling of 1256116514 in words is "one billion, two hundred fifty-six million, one hundred sixteen thousand, five hundred fourteen".