1233013729 has 2 divisors, whose sum is σ = 1233013730. Its totient is φ = 1233013728.

The previous prime is 1233013703. The next prime is 1233013799. The reversal of 1233013729 is 9273103321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 747913104 + 485100625 = 27348^2 + 22025^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233013729 - 2¹⁵ = 1232980961 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1233013729.

It is not a weakly prime, because it can be changed into another prime (1233013799) 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, 616506864 + 616506865.

It is an arithmetic number, because the mean of its divisors is an integer number (616506865).

Almost surely, 2^1233013729 is an apocalyptic number.

It is an amenable number.

1233013729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233013729 is an equidigital number, since it uses as much as digits as its factorization.

1233013729 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 1233013729 is about 35114.2952228861. The cubic root of 1233013729 is about 1072.3156328251.

The spelling of 1233013729 in words is "one billion, two hundred thirty-three million, thirteen thousand, seven hundred twenty-nine".