281838053 has 12 divisors (see below), whose sum is σ = 347138892. Its totient is φ = 227364480.

The previous prime is 281838049. The next prime is 281838083. The reversal of 281838053 is 350838182.

It can be written as a sum of positive squares in 2 ways, for example, as 123254404 + 158583649 = 11102^2 + 12593^2 .

It is not a de Polignac number, because 281838053 - 2² = 281838049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 281837998 and 281838016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281838013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168338 + ... + 170003.

It is an arithmetic number, because the mean of its divisors is an integer number (28928241).

Almost surely, 2^281838053 is an apocalyptic number.

It is an amenable number.

281838053 is a deficient number, since it is larger than the sum of its proper divisors (65300839).

281838053 is a wasteful number, since it uses less digits than its factorization.

281838053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338372 (or 338365 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 281838053 is about 16788.0330295124. The cubic root of 281838053 is about 655.6416632155.

The spelling of 281838053 in words is "two hundred eighty-one million, eight hundred thirty-eight thousand, fifty-three".