281136441 has 16 divisors (see below), whose sum is σ = 377626304. Its totient is φ = 186041664.

The previous prime is 281136421. The next prime is 281136461. The reversal of 281136441 is 144631182.

It is an interprime number because it is at equal distance from previous prime (281136421) and next prime (281136461).

It is not a de Polignac number, because 281136441 - 2⁵ = 281136409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 281136399 and 281136408.

It is not an unprimeable number, because it can be changed into a prime (281136421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309510 + ... + 310416.

It is an arithmetic number, because the mean of its divisors is an integer number (23601644).

Almost surely, 2^281136441 is an apocalyptic number.

It is an amenable number.

281136441 is a deficient number, since it is larger than the sum of its proper divisors (96489863).

281136441 is a wasteful number, since it uses less digits than its factorization.

281136441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560.

The product of its digits is 4608, while the sum is 30.

The square root of 281136441 is about 16767.1238141787. The cubic root of 281136441 is about 655.0971563046.

The spelling of 281136441 in words is "two hundred eighty-one million, one hundred thirty-six thousand, four hundred forty-one".