1129307273 has 4 divisors (see below), whose sum is σ = 1136069760. Its totient is φ = 1122544788.

The previous prime is 1129307261. The next prime is 1129307281. The reversal of 1129307273 is 3727039211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1129307273 - 2⁸ = 1129307017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129307233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3380993 + ... + 3381326.

It is an arithmetic number, because the mean of its divisors is an integer number (284017440).

Almost surely, 2^1129307273 is an apocalyptic number.

It is an amenable number.

1129307273 is a deficient number, since it is larger than the sum of its proper divisors (6762487).

1129307273 is an equidigital number, since it uses as much as digits as its factorization.

1129307273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762486.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 1129307273 is about 33605.1673556315. The cubic root of 1129307273 is about 1041.3675528279.

The spelling of 1129307273 in words is "one billion, one hundred twenty-nine million, three hundred seven thousand, two hundred seventy-three".