11111149 has 8 divisors (see below), whose sum is σ = 13445568. Its totient is φ = 8963520.

The previous prime is 11111141. The next prime is 11111161. The reversal of 11111149 is 94111111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111149 - 2³ = 11111141 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111141) 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 in 7 ways as a sum of consecutive naturals, for example, 46567 + ... + 46804.

It is an arithmetic number, because the mean of its divisors is an integer number (1680696).

Almost surely, 2^11111149 is an apocalyptic number.

It is an amenable number.

11111149 is a deficient number, since it is larger than the sum of its proper divisors (2334419).

11111149 is an equidigital number, since it uses as much as digits as its factorization.

11111149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93395.

The product of its digits is 36, while the sum is 19.

The square root of 11111149 is about 3333.3390166618. The cubic root of 11111149 is about 223.1445703345.

The spelling of 11111149 in words is "eleven million, one hundred eleven thousand, one hundred forty-nine".