1229573249 has 2 divisors, whose sum is σ = 1229573250. Its totient is φ = 1229573248.

The previous prime is 1229573203. The next prime is 1229573281. The reversal of 1229573249 is 9423759221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 652036225 + 577537024 = 25535^2 + 24032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1229573249 is a prime.

It is not a weakly prime, because it can be changed into another prime (1229573549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 614786624 + 614786625.

It is an arithmetic number, because the mean of its divisors is an integer number (614786625).

Almost surely, 2^1229573249 is an apocalyptic number.

It is an amenable number.

1229573249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1229573249 is an equidigital number, since it uses as much as digits as its factorization.

1229573249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 1229573249 is about 35065.2712665965. The cubic root of 1229573249 is about 1071.3173424486.

The spelling of 1229573249 in words is "one billion, two hundred twenty-nine million, five hundred seventy-three thousand, two hundred forty-nine".