11148281 has 2 divisors, whose sum is σ = 11148282. Its totient is φ = 11148280.

The previous prime is 11148271. The next prime is 11148283. The reversal of 11148281 is 18284111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6330256 + 4818025 = 2516^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 11148281 - 2²² = 6953977 is a prime.

It is a super-2 number, since 2×11148281² = 248568338509922, which contains 22 as substring.

Together with 11148283, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11148281.

It is not a weakly prime, because it can be changed into another prime (11148283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5574140 + 5574141.

It is an arithmetic number, because the mean of its divisors is an integer number (5574141).

Almost surely, 2^11148281 is an apocalyptic number.

It is an amenable number.

11148281 is a deficient number, since it is larger than the sum of its proper divisors (1).

11148281 is an equidigital number, since it uses as much as digits as its factorization.

11148281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 512, while the sum is 26.

The square root of 11148281 is about 3338.9041615476. The cubic root of 11148281 is about 223.3928672256.

The spelling of 11148281 in words is "eleven million, one hundred forty-eight thousand, two hundred eighty-one".