1223254579 has 2 divisors, whose sum is σ = 1223254580. Its totient is φ = 1223254578.

The previous prime is 1223254553. The next prime is 1223254607. The reversal of 1223254579 is 9754523221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223254579 - 2⁵ = 1223254547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223254519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611627289 + 611627290.

It is an arithmetic number, because the mean of its divisors is an integer number (611627290).

Almost surely, 2^1223254579 is an apocalyptic number.

1223254579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223254579 is an equidigital number, since it uses as much as digits as its factorization.

1223254579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 1223254579 is about 34975.0565260444. The cubic root of 1223254579 is about 1069.4790543563.

The spelling of 1223254579 in words is "one billion, two hundred twenty-three million, two hundred fifty-four thousand, five hundred seventy-nine".