2279455729 has 2 divisors, whose sum is σ = 2279455730. Its totient is φ = 2279455728.

The previous prime is 2279455723. The next prime is 2279455741. The reversal of 2279455729 is 9275549722.

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., 2251312704 + 28143025 = 47448^2 + 5305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2279455729 - 2¹⁵ = 2279422961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2279455723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1139727864 + 1139727865.

It is an arithmetic number, because the mean of its divisors is an integer number (1139727865).

Almost surely, 2^2279455729 is an apocalyptic number.

It is an amenable number.

2279455729 is a deficient number, since it is larger than the sum of its proper divisors (1).

2279455729 is an equidigital number, since it uses as much as digits as its factorization.

2279455729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3175200, while the sum is 52.

The square root of 2279455729 is about 47743.6459542000. The cubic root of 2279455729 is about 1316.0641348088.

The spelling of 2279455729 in words is "two billion, two hundred seventy-nine million, four hundred fifty-five thousand, seven hundred twenty-nine".