1255460243 has 2 divisors, whose sum is σ = 1255460244. Its totient is φ = 1255460242.

The previous prime is 1255460197. The next prime is 1255460299. The reversal of 1255460243 is 3420645521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1255460243 - 2³⁰ = 181718419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1255460443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627730121 + 627730122.

It is an arithmetic number, because the mean of its divisors is an integer number (627730122).

Almost surely, 2^1255460243 is an apocalyptic number.

1255460243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255460243 is an equidigital number, since it uses as much as digits as its factorization.

1255460243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1255460243 is about 35432.4744126063. The cubic root of 1255460243 is about 1078.7835649651.

The spelling of 1255460243 in words is "one billion, two hundred fifty-five million, four hundred sixty thousand, two hundred forty-three".