2054183581 has 2 divisors, whose sum is σ = 2054183582. Its totient is φ = 2054183580.

The previous prime is 2054183563. The next prime is 2054183633. The reversal of 2054183581 is 1853814502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1594724356 + 459459225 = 39934^2 + 21435^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054183581 - 2²³ = 2045794973 is a prime.

It is a super-2 number, since 2×2054183581² = 8439340368899967122, 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 2054183581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054180581) 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, 1027091790 + 1027091791.

It is an arithmetic number, because the mean of its divisors is an integer number (1027091791).

Almost surely, 2^2054183581 is an apocalyptic number.

It is an amenable number.

2054183581 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054183581 is an equidigital number, since it uses as much as digits as its factorization.

2054183581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 37.

The square root of 2054183581 is about 45323.1020672681. The cubic root of 2054183581 is about 1271.1976593432.

The spelling of 2054183581 in words is "two billion, fifty-four million, one hundred eighty-three thousand, five hundred eighty-one".