11282881 has 3 divisors (see below), whose sum is σ = 11286241. Its totient is φ = 11279522.

The previous prime is 11282879. The next prime is 11282893. The reversal of 11282881 is 18828211.

It is a happy number.

The square root of 11282881 is 3359.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18828211 = 3061 ⋅6151.

It is not a de Polignac number, because 11282881 - 2¹ = 11282879 is a prime.

It is a super-2 number, since 2×11282881² = 254606807320322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11282851) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1680 + ... + 5038.

Almost surely, 2^11282881 is an apocalyptic number.

11282881 is the 3359-th square number.

11282881 is the 1680-th centered octagonal number.

It is an amenable number.

11282881 is a deficient number, since it is larger than the sum of its proper divisors (3360).

11282881 is an frugal number, since it uses more digits than its factorization.

11282881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6718 (or 3359 counting only the distinct ones).

The product of its digits is 2048, while the sum is 31.

The cubic root of 11282881 is about 224.2883258362.

The spelling of 11282881 in words is "eleven million, two hundred eighty-two thousand, eight hundred eighty-one".