1268513455 has 16 divisors (see below), whose sum is σ = 1667931264. Its totient is φ = 918482080.

The previous prime is 1268513419. The next prime is 1268513489. The reversal of 1268513455 is 5543158621.

It is not a de Polignac number, because 1268513455 - 2¹³ = 1268505263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38317 + ... + 63286.

It is an arithmetic number, because the mean of its divisors is an integer number (104245704).

Almost surely, 2^1268513455 is an apocalyptic number.

1268513455 is a deficient number, since it is larger than the sum of its proper divisors (399417809).

1268513455 is a wasteful number, since it uses less digits than its factorization.

1268513455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101846.

The product of its digits is 144000, while the sum is 40.

The square root of 1268513455 is about 35616.1965262997. The cubic root of 1268513455 is about 1082.5094410049.

The spelling of 1268513455 in words is "one billion, two hundred sixty-eight million, five hundred thirteen thousand, four hundred fifty-five".