11148191 has 4 divisors (see below), whose sum is σ = 11155584. Its totient is φ = 11140800.

The previous prime is 11148173. The next prime is 11148199. The reversal of 11148191 is 19184111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 19184111 = 4363 ⋅4397.

It is a cyclic number.

It is not a de Polignac number, because 11148191 - 2¹⁴ = 11131807 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 11148191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11148199) 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, 530 + ... + 4751.

It is an arithmetic number, because the mean of its divisors is an integer number (2788896).

Almost surely, 2^11148191 is an apocalyptic number.

11148191 is a deficient number, since it is larger than the sum of its proper divisors (7393).

11148191 is an equidigital number, since it uses as much as digits as its factorization.

11148191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7392.

The product of its digits is 288, while the sum is 26.

The square root of 11148191 is about 3338.8906840446. The cubic root of 11148191 is about 223.3922660743.

The spelling of 11148191 in words is "eleven million, one hundred forty-eight thousand, one hundred ninety-one".