11480281 has 4 divisors (see below), whose sum is σ = 11488932. Its totient is φ = 11471632.

The previous prime is 11480251. The next prime is 11480291. The reversal of 11480281 is 18208411.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 4410000 + 7070281 = 2100^2 + 2659^2 .

It is a cyclic number.

It is not a de Polignac number, because 11480281 - 2¹⁹ = 10955993 is a prime.

It is a super-2 number, since 2×11480281² = 263593703677922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11480251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1870 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (2872233).

Almost surely, 2^11480281 is an apocalyptic number.

It is an amenable number.

11480281 is a deficient number, since it is larger than the sum of its proper divisors (8651).

11480281 is an equidigital number, since it uses as much as digits as its factorization.

11480281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8650.

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 11480281 is about 3388.2563362296. The cubic root of 11480281 is about 225.5887854799.

Adding to 11480281 its reverse (18208411), we get a palindrome (29688692).

The spelling of 11480281 in words is "eleven million, four hundred eighty thousand, two hundred eighty-one".