1183913 has 2 divisors, whose sum is σ = 1183914. Its totient is φ = 1183912.

The previous prime is 1183877. The next prime is 1183933. The reversal of 1183913 is 3193811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1183744 + 169 = 1088^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 1183913 - 2¹⁰ = 1182889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1183933) 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 as a sum of consecutive naturals, namely, 591956 + 591957.

It is an arithmetic number, because the mean of its divisors is an integer number (591957).

2^1183913 is an apocalyptic number.

It is an amenable number.

1183913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1183913 is an equidigital number, since it uses as much as digits as its factorization.

1183913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 26.

The square root of 1183913 is about 1088.0776626694. The cubic root of 1183913 is about 105.7888582147.

The spelling of 1183913 in words is "one million, one hundred eighty-three thousand, nine hundred thirteen".