11148661 has 2 divisors, whose sum is σ = 11148662. Its totient is φ = 11148660.

The previous prime is 11148659. The next prime is 11148671. The reversal of 11148661 is 16684111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 844561 = 3210^2 + 919^2 .

It is a cyclic number.

It is not a de Polignac number, because 11148661 - 2¹ = 11148659 is a prime.

Together with 11148659, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11148671) 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 as a sum of consecutive naturals, namely, 5574330 + 5574331.

It is an arithmetic number, because the mean of its divisors is an integer number (5574331).

Almost surely, 2^11148661 is an apocalyptic number.

It is an amenable number.

11148661 is a deficient number, since it is larger than the sum of its proper divisors (1).

11148661 is an equidigital number, since it uses as much as digits as its factorization.

11148661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 28.

The square root of 11148661 is about 3338.9610659605. The cubic root of 11148661 is about 223.3954053845.

The spelling of 11148661 in words is "eleven million, one hundred forty-eight thousand, six hundred sixty-one".