2271131855 has 8 divisors (see below), whose sum is σ = 2726202192. Its totient is φ = 1816342848.

The previous prime is 2271131843. The next prime is 2271131857. The reversal of 2271131855 is 5581311722.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2271131855 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271131857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52142 + ... + 85211.

It is an arithmetic number, because the mean of its divisors is an integer number (340775274).

Almost surely, 2^2271131855 is an apocalyptic number.

2271131855 is a deficient number, since it is larger than the sum of its proper divisors (455070337).

2271131855 is a wasteful number, since it uses less digits than its factorization.

2271131855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140665.

The product of its digits is 16800, while the sum is 35.

The square root of 2271131855 is about 47656.3936424065. The cubic root of 2271131855 is about 1314.4602265486.

The spelling of 2271131855 in words is "two billion, two hundred seventy-one million, one hundred thirty-one thousand, eight hundred fifty-five".