1172159 has 4 divisors (see below), whose sum is σ = 1176240. Its totient is φ = 1168080.

The previous prime is 1172147. The next prime is 1172179. The reversal of 1172159 is 9512711.

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 1172159 - 2²⁰ = 123583 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 (1172179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574 + ... + 2195.

It is an arithmetic number, because the mean of its divisors is an integer number (294060).

2^1172159 is an apocalyptic number.

1172159 is a deficient number, since it is larger than the sum of its proper divisors (4081).

1172159 is an equidigital number, since it uses as much as digits as its factorization.

1172159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4080.

The product of its digits is 630, while the sum is 26.

The square root of 1172159 is about 1082.6629207653. The cubic root of 1172159 is about 105.4375992704.

It can be divided in two parts, 1172 and 159, that added together give a palindrome (1331).

The spelling of 1172159 in words is "one million, one hundred seventy-two thousand, one hundred fifty-nine".