1179091 has 4 divisors (see below), whose sum is σ = 1201392. Its totient is φ = 1156792.

The previous prime is 1179047. The next prime is 1179109. The reversal of 1179091 is 1909711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1909711 = 887 ⋅2153.

It is a cyclic number.

It is not a de Polignac number, because 1179091 - 2⁷ = 1178963 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1179011) 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, 11071 + ... + 11176.

It is an arithmetic number, because the mean of its divisors is an integer number (300348).

2^1179091 is an apocalyptic number.

1179091 is a deficient number, since it is larger than the sum of its proper divisors (22301).

1179091 is an equidigital number, since it uses as much as digits as its factorization.

1179091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22300.

The product of its (nonzero) digits is 567, while the sum is 28.

The square root of 1179091 is about 1085.8595673475. The cubic root of 1179091 is about 105.6450390886.

It can be divided in two parts, 11790 and 91, that added together give a square (11881 = 109²).

The spelling of 1179091 in words is "one million, one hundred seventy-nine thousand, ninety-one".