2258228491 has 2 divisors, whose sum is σ = 2258228492. Its totient is φ = 2258228490.

The previous prime is 2258228477. The next prime is 2258228543. The reversal of 2258228491 is 1948228522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2258228491 - 2²³ = 2249839883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2258228431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1129114245 + 1129114246.

It is an arithmetic number, because the mean of its divisors is an integer number (1129114246).

Almost surely, 2^2258228491 is an apocalyptic number.

2258228491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2258228491 is an equidigital number, since it uses as much as digits as its factorization.

2258228491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 184320, while the sum is 43.

The square root of 2258228491 is about 47520.8216574587. The cubic root of 2258228491 is about 1311.9661424422.

The spelling of 2258228491 in words is "two billion, two hundred fifty-eight million, two hundred twenty-eight thousand, four hundred ninety-one".