1255641223 has 2 divisors, whose sum is σ = 1255641224. Its totient is φ = 1255641222.

The previous prime is 1255641119. The next prime is 1255641227. The reversal of 1255641223 is 3221465521.

It is a strong prime.

It is an emirp because it is prime and its reverse (3221465521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1255641223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255641227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627820611 + 627820612.

It is an arithmetic number, because the mean of its divisors is an integer number (627820612).

Almost surely, 2^1255641223 is an apocalyptic number.

1255641223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255641223 is an equidigital number, since it uses as much as digits as its factorization.

1255641223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14400, while the sum is 31.

The square root of 1255641223 is about 35435.0281924539. The cubic root of 1255641223 is about 1078.8353995732.

The spelling of 1255641223 in words is "one billion, two hundred fifty-five million, six hundred forty-one thousand, two hundred twenty-three".