11154139 has 2 divisors, whose sum is σ = 11154140. Its totient is φ = 11154138.

The previous prime is 11154113. The next prime is 11154161. The reversal of 11154139 is 93145111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11154139 - 2¹¹ = 11152091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11152139) 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, 5577069 + 5577070.

It is an arithmetic number, because the mean of its divisors is an integer number (5577070).

Almost surely, 2^11154139 is an apocalyptic number.

11154139 is a deficient number, since it is larger than the sum of its proper divisors (1).

11154139 is an equidigital number, since it uses as much as digits as its factorization.

11154139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 11154139 is about 3339.7812802637. The cubic root of 11154139 is about 223.4319885416.

The spelling of 11154139 in words is "eleven million, one hundred fifty-four thousand, one hundred thirty-nine".