1255206043 has 16 divisors (see below), whose sum is σ = 1598143680. Its totient is φ = 958882176.

The previous prime is 1255206013. The next prime is 1255206047. The reversal of 1255206043 is 3406025521.

It is not a de Polignac number, because 1255206043 - 2⁵ = 1255206011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1255206047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235180 + ... + 240457.

It is an arithmetic number, because the mean of its divisors is an integer number (99883980).

Almost surely, 2^1255206043 is an apocalyptic number.

1255206043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1255206043 is a deficient number, since it is larger than the sum of its proper divisors (342937637).

1255206043 is a wasteful number, since it uses less digits than its factorization.

1255206043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475686.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1255206043 is about 35428.8871261856. The cubic root of 1255206043 is about 1078.7107509529.

The spelling of 1255206043 in words is "one billion, two hundred fifty-five million, two hundred six thousand, forty-three".