11154491 has 2 divisors, whose sum is σ = 11154492. Its totient is φ = 11154490.

The previous prime is 11154469. The next prime is 11154497. The reversal of 11154491 is 19445111.

11154491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11154491 is a prime.

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 11154491.

It is not a weakly prime, because it can be changed into another prime (11154497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577245 + 5577246.

It is an arithmetic number, because the mean of its divisors is an integer number (5577246).

Almost surely, 2^11154491 is an apocalyptic number.

11154491 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154491 is an equidigital number, since it uses as much as digits as its factorization.

11154491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 26.

The square root of 11154491 is about 3339.8339779097. The cubic root of 11154491 is about 223.4343388569.

The spelling of 11154491 in words is "eleven million, one hundred fifty-four thousand, four hundred ninety-one".