2271856903 has 2 divisors, whose sum is σ = 2271856904. Its totient is φ = 2271856902.

The previous prime is 2271856841. The next prime is 2271856919. The reversal of 2271856903 is 3096581722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2271856903 - 2²⁹ = 1734985991 is a prime.

It is a super-2 number, since 2×2271856903² = 10322667575417502818, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2271856903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2271856963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135928451 + 1135928452.

It is an arithmetic number, because the mean of its divisors is an integer number (1135928452).

Almost surely, 2^2271856903 is an apocalyptic number.

2271856903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271856903 is an equidigital number, since it uses as much as digits as its factorization.

2271856903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 2271856903 is about 47664.0000734307. Note that the first 4 decimals coincide. The cubic root of 2271856903 is about 1314.6000900496.

The spelling of 2271856903 in words is "two billion, two hundred seventy-one million, eight hundred fifty-six thousand, nine hundred three".