11189207 has 4 divisors (see below), whose sum is σ = 11491656. Its totient is φ = 10886760.

The previous prime is 11189203. The next prime is 11189231. The reversal of 11189207 is 70298111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11189207 - 2² = 11189203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11189207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11189203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151169 + ... + 151242.

It is an arithmetic number, because the mean of its divisors is an integer number (2872914).

Almost surely, 2^11189207 is an apocalyptic number.

11189207 is a deficient number, since it is larger than the sum of its proper divisors (302449).

11189207 is an equidigital number, since it uses as much as digits as its factorization.

11189207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302448.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 11189207 is about 3345.0272046726. The cubic root of 11189207 is about 223.6658962124.

The spelling of 11189207 in words is "eleven million, one hundred eighty-nine thousand, two hundred seven".