1113239 has 2 divisors, whose sum is σ = 1113240. Its totient is φ = 1113238.

The previous prime is 1113221. The next prime is 1113253. The reversal of 1113239 is 9323111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1113239 - 2⁸ = 1112983 is a prime.

It is a super-2 number, since 2×1113239² = 2478602142242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1113239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556619 + 556620.

It is an arithmetic number, because the mean of its divisors is an integer number (556620).

2^1113239 is an apocalyptic number.

1113239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113239 is an equidigital number, since it uses as much as digits as its factorization.

1113239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162, while the sum is 20.

The square root of 1113239 is about 1055.1014169264. The cubic root of 1113239 is about 103.6404931574.

The spelling of 1113239 in words is "one million, one hundred thirteen thousand, two hundred thirty-nine".