1269745223 has 2 divisors, whose sum is σ = 1269745224. Its totient is φ = 1269745222.

The previous prime is 1269745219. The next prime is 1269745261. The reversal of 1269745223 is 3225479621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1269745223 - 2² = 1269745219 is a prime.

It is a super-2 number, since 2×1269745223² = 3224505862662639458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1269745273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634872611 + 634872612.

It is an arithmetic number, because the mean of its divisors is an integer number (634872612).

Almost surely, 2^1269745223 is an apocalyptic number.

1269745223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1269745223 is an equidigital number, since it uses as much as digits as its factorization.

1269745223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 1269745223 is about 35633.4845756067. The cubic root of 1269745223 is about 1082.8597116635.

The spelling of 1269745223 in words is "one billion, two hundred sixty-nine million, seven hundred forty-five thousand, two hundred twenty-three".