1183121 has 2 divisors, whose sum is σ = 1183122. Its totient is φ = 1183120.

The previous prime is 1183103. The next prime is 1183123. The reversal of 1183121 is 1213811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1050625 + 132496 = 1025^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1183121 - 2⁶ = 1183057 is a prime.

Together with 1183123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1183121.

It is not a weakly prime, because it can be changed into another prime (1183123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 591560 + 591561.

It is an arithmetic number, because the mean of its divisors is an integer number (591561).

2^1183121 is an apocalyptic number.

It is an amenable number.

1183121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183121 is an equidigital number, since it uses as much as digits as its factorization.

1183121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 17.

The square root of 1183121 is about 1087.7136571727. The cubic root of 1183121 is about 105.7652631629.

Adding to 1183121 its reverse (1213811), we get a palindrome (2396932).

The spelling of 1183121 in words is "one million, one hundred eighty-three thousand, one hundred twenty-one".