1112729 has 2 divisors, whose sum is σ = 1112730. Its totient is φ = 1112728.

The previous prime is 1112723. The next prime is 1112731. The reversal of 1112729 is 9272111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912025 + 200704 = 955^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112729 - 2¹² = 1108633 is a prime.

Together with 1112731, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1112723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556364 + 556365.

It is an arithmetic number, because the mean of its divisors is an integer number (556365).

2^1112729 is an apocalyptic number.

It is an amenable number.

1112729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112729 is an equidigital number, since it uses as much as digits as its factorization.

1112729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 252, while the sum is 23.

The square root of 1112729 is about 1054.8597063117. The cubic root of 1112729 is about 103.6246640542.

The spelling of 1112729 in words is "one million, one hundred twelve thousand, seven hundred twenty-nine".