1323865229 has 2 divisors, whose sum is σ = 1323865230. Its totient is φ = 1323865228.

The previous prime is 1323865177. The next prime is 1323865241. The reversal of 1323865229 is 9225683231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1316964100 + 6901129 = 36290^2 + 2627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323865229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323865289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661932614 + 661932615.

It is an arithmetic number, because the mean of its divisors is an integer number (661932615).

Almost surely, 2^1323865229 is an apocalyptic number.

It is an amenable number.

1323865229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323865229 is an equidigital number, since it uses as much as digits as its factorization.

1323865229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 41.

The square root of 1323865229 is about 36384.9588291646. The cubic root of 1323865229 is about 1098.0309758537.

The spelling of 1323865229 in words is "one billion, three hundred twenty-three million, eight hundred sixty-five thousand, two hundred twenty-nine".