2081508223 has 16 divisors (see below), whose sum is σ = 2189784960. Its totient is φ = 1976230656.

The previous prime is 2081508173. The next prime is 2081508239. The reversal of 2081508223 is 3228051802.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2081508223 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 (2081506223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647043 + ... + 650251.

It is an arithmetic number, because the mean of its divisors is an integer number (136861560).

Almost surely, 2^2081508223 is an apocalyptic number.

2081508223 is a deficient number, since it is larger than the sum of its proper divisors (108276737).

2081508223 is a wasteful number, since it uses less digits than its factorization.

2081508223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3666.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 2081508223 is about 45623.5489961051. The cubic root of 2081508223 is about 1276.8093185551.

The spelling of 2081508223 in words is "two billion, eighty-one million, five hundred eight thousand, two hundred twenty-three".