1112389 has 2 divisors, whose sum is σ = 1112390. Its totient is φ = 1112388.

The previous prime is 1112383. The next prime is 1112413. The reversal of 1112389 is 9832111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 801025 + 311364 = 895^2 + 558^2 .

It is an emirp because it is prime and its reverse (9832111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1112389 - 2³ = 1112381 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556194 + 556195.

It is an arithmetic number, because the mean of its divisors is an integer number (556195).

2^1112389 is an apocalyptic number.

It is an amenable number.

1112389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112389 is an equidigital number, since it uses as much as digits as its factorization.

1112389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 25.

The square root of 1112389 is about 1054.6985351275. The cubic root of 1112389 is about 103.6141086315.

It can be divided in two parts, 111 and 2389, that added together give a square (2500 = 50²).

The spelling of 1112389 in words is "one million, one hundred twelve thousand, three hundred eighty-nine".