1232279249 has 2 divisors, whose sum is σ = 1232279250. Its totient is φ = 1232279248.

The previous prime is 1232279197. The next prime is 1232279263. The reversal of 1232279249 is 9429722321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989542849 + 242736400 = 31457^2 + 15580^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232279249 - 2²⁰ = 1231230673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232275249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616139624 + 616139625.

It is an arithmetic number, because the mean of its divisors is an integer number (616139625).

Almost surely, 2^1232279249 is an apocalyptic number.

It is an amenable number.

1232279249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232279249 is an equidigital number, since it uses as much as digits as its factorization.

1232279249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 1232279249 is about 35103.8352463089. The cubic root of 1232279249 is about 1072.1026720111.

The spelling of 1232279249 in words is "one billion, two hundred thirty-two million, two hundred seventy-nine thousand, two hundred forty-nine".