2054123281 has 8 divisors (see below), whose sum is σ = 2348964800. Its totient is φ = 1759630608.

The previous prime is 2054123257. The next prime is 2054123303. The reversal of 2054123281 is 1823214502.

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

It is a cyclic number.

It is not a de Polignac number, because 2054123281 - 2⁵ = 2054123249 is a prime.

It is a super-2 number, since 2×2054123281² = 8438844907092409922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2054123251) 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, 74466 + ... + 98251.

It is an arithmetic number, because the mean of its divisors is an integer number (293620600).

Almost surely, 2^2054123281 is an apocalyptic number.

It is an amenable number.

2054123281 is a deficient number, since it is larger than the sum of its proper divisors (294841519).

2054123281 is a wasteful number, since it uses less digits than its factorization.

2054123281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174423.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 2054123281 is about 45322.4368387226. The cubic root of 2054123281 is about 1271.1852206678.

Adding to 2054123281 its reverse (1823214502), we get a palindrome (3877337783).

The spelling of 2054123281 in words is "two billion, fifty-four million, one hundred twenty-three thousand, two hundred eighty-one".