1206313729 has 8 divisors (see below), whose sum is σ = 1259112960. Its totient is φ = 1153543776.

The previous prime is 1206313721. The next prime is 1206313751. The reversal of 1206313729 is 9273136021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1206313729 - 2³ = 1206313721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1206313694 and 1206313703.

It is not an unprimeable number, because it can be changed into a prime (1206313721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141424 + ... + 149710.

It is an arithmetic number, because the mean of its divisors is an integer number (157389120).

Almost surely, 2^1206313729 is an apocalyptic number.

It is an amenable number.

1206313729 is a deficient number, since it is larger than the sum of its proper divisors (52799231).

1206313729 is an equidigital number, since it uses as much as digits as its factorization.

1206313729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14639.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1206313729 is about 34732.0274242665. The cubic root of 1206313729 is about 1064.5190151747.

The spelling of 1206313729 in words is "one billion, two hundred six million, three hundred thirteen thousand, seven hundred twenty-nine".