2191258903 has 2 divisors, whose sum is σ = 2191258904. Its totient is φ = 2191258902.

The previous prime is 2191258873. The next prime is 2191258907. The reversal of 2191258903 is 3098521912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2191258903 - 2²⁹ = 1654387991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2191258907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095629451 + 1095629452.

It is an arithmetic number, because the mean of its divisors is an integer number (1095629452).

Almost surely, 2^2191258903 is an apocalyptic number.

2191258903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2191258903 is an equidigital number, since it uses as much as digits as its factorization.

2191258903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 2191258903 is about 46810.8844500934. The cubic root of 2191258903 is about 1298.8666459446.

The spelling of 2191258903 in words is "two billion, one hundred ninety-one million, two hundred fifty-eight thousand, nine hundred three".