1144191 has 8 divisors (see below), whose sum is σ = 1530544. Its totient is φ = 760320.

The previous prime is 1144183. The next prime is 1144193. The reversal of 1144191 is 1914411.

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

It is not a de Polignac number, because 1144191 - 2³ = 1144183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144193) 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, 1401 + ... + 2061.

It is an arithmetic number, because the mean of its divisors is an integer number (191318).

2^1144191 is an apocalyptic number.

1144191 is a deficient number, since it is larger than the sum of its proper divisors (386353).

1144191 is an equidigital number, since it uses as much as digits as its factorization.

1144191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

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

The square root of 1144191 is about 1069.6686402807. The cubic root of 1144191 is about 104.5922508264.

It can be divided in two parts, 114 and 4191, that multiplied together give a palindrome (477774).

The spelling of 1144191 in words is "one million, one hundred forty-four thousand, one hundred ninety-one".