1204796129 has 4 divisors (see below), whose sum is σ = 1204905876. Its totient is φ = 1204686384.

The previous prime is 1204796123. The next prime is 1204796179. The reversal of 1204796129 is 9216974021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 277289104 + 927507025 = 16652^2 + 30455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1204796129 - 2²⁰ = 1203747553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1204796123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36314 + ... + 61059.

It is an arithmetic number, because the mean of its divisors is an integer number (301226469).

Almost surely, 2^1204796129 is an apocalyptic number.

It is an amenable number.

1204796129 is a deficient number, since it is larger than the sum of its proper divisors (109747).

1204796129 is an equidigital number, since it uses as much as digits as its factorization.

1204796129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109746.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 1204796129 is about 34710.1732781615. The cubic root of 1204796129 is about 1064.0724226736.

The spelling of 1204796129 in words is "one billion, two hundred four million, seven hundred ninety-six thousand, one hundred twenty-nine".