1217159 has 12 divisors (see below), whose sum is σ = 1354200. Its totient is φ = 1089648.

The previous prime is 1217147. The next prime is 1217171. The reversal of 1217159 is 9517121.

It is an interprime number because it is at equal distance from previous prime (1217147) and next prime (1217171).

It is not a de Polignac number, because 1217159 - 2⁴ = 1217143 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 (1217119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25874 + ... + 25920.

It is an arithmetic number, because the mean of its divisors is an integer number (112850).

2^1217159 is an apocalyptic number.

1217159 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1217159 is a deficient number, since it is larger than the sum of its proper divisors (137041).

1217159 is an equidigital number, since it uses as much as digits as its factorization.

1217159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 95 counting only the distinct ones).

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

The square root of 1217159 is about 1103.2492918647. The cubic root of 1217159 is about 106.7699661184.

It can be divided in two parts, 12 and 17159, that added together give a palindrome (17171).

The spelling of 1217159 in words is "one million, two hundred seventeen thousand, one hundred fifty-nine".