11191242 has 16 divisors (see below), whose sum is σ = 22987872. Its totient is φ = 3629520.

The previous prime is 11191231. The next prime is 11191249. The reversal of 11191242 is 24219111.

It is a happy number.

11191242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11191249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24984 + ... + 25427.

It is an arithmetic number, because the mean of its divisors is an integer number (1436742).

Almost surely, 2^11191242 is an apocalyptic number.

11191242 is an abundant number, since it is smaller than the sum of its proper divisors (11796630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11191242 is a wasteful number, since it uses less digits than its factorization.

11191242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50453.

The product of its digits is 144, while the sum is 21.

The square root of 11191242 is about 3345.3313737207. The cubic root of 11191242 is about 223.6794548888.

The spelling of 11191242 in words is "eleven million, one hundred ninety-one thousand, two hundred forty-two".