1191041 has 4 divisors (see below), whose sum is σ = 1198512. Its totient is φ = 1183572.

The previous prime is 1191031. The next prime is 1191061. The reversal of 1191041 is 1401911.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1401911 = 7 ⋅200273.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1191041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1191011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3491 + ... + 3816.

It is an arithmetic number, because the mean of its divisors is an integer number (299628).

2^1191041 is an apocalyptic number.

It is an amenable number.

1191041 is a deficient number, since it is larger than the sum of its proper divisors (7471).

1191041 is an equidigital number, since it uses as much as digits as its factorization.

1191041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1191041 is about 1091.3482487272. The cubic root of 1191041 is about 106.0007416585. Note that the first 3 decimals are identical.

Adding to 1191041 its reverse (1401911), we get a palindrome (2592952).

The spelling of 1191041 in words is "one million, one hundred ninety-one thousand, forty-one".