2279545091 has 4 divisors (see below), whose sum is σ = 2282994384. Its totient is φ = 2276095800.

The previous prime is 2279545069. The next prime is 2279545139. The reversal of 2279545091 is 1905459722.

2279545091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2279545091 - 2⁶ = 2279545027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2279545001) 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, 1723655 + ... + 1724976.

It is an arithmetic number, because the mean of its divisors is an integer number (570748596).

Almost surely, 2^2279545091 is an apocalyptic number.

2279545091 is a deficient number, since it is larger than the sum of its proper divisors (3449293).

2279545091 is an equidigital number, since it uses as much as digits as its factorization.

2279545091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3449292.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 2279545091 is about 47744.5817973097. The cubic root of 2279545091 is about 1316.0813325672.

The spelling of 2279545091 in words is "two billion, two hundred seventy-nine million, five hundred forty-five thousand, ninety-one".