1286407255 has 96 divisors (see below), whose sum is σ = 2026456704. Its totient is φ = 764854272.

The previous prime is 1286407253. The next prime is 1286407261. The reversal of 1286407255 is 5527046821.

It is not a de Polignac number, because 1286407255 - 2¹ = 1286407253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1286407253) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 11384079 + ... + 11384191.

It is an arithmetic number, because the mean of its divisors is an integer number (21108924).

Almost surely, 2^1286407255 is an apocalyptic number.

1286407255 is a deficient number, since it is larger than the sum of its proper divisors (740049449).

1286407255 is a wasteful number, since it uses less digits than its factorization.

1286407255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 1286407255 is about 35866.5199733679. The cubic root of 1286407255 is about 1087.5756952640.

The spelling of 1286407255 in words is "one billion, two hundred eighty-six million, four hundred seven thousand, two hundred fifty-five".