1126399 has 2 divisors, whose sum is σ = 1126400. Its totient is φ = 1126398.

The previous prime is 1126397. The next prime is 1126421. The reversal of 1126399 is 9936211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1126399 - 2¹ = 1126397 is a prime.

Together with 1126397, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1126399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1126397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563199 + 563200.

It is an arithmetic number, because the mean of its divisors is an integer number (563200).

2^1126399 is an apocalyptic number.

1126399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126399 is an equidigital number, since it uses as much as digits as its factorization.

1126399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 1126399 is about 1061.3194618021. The cubic root of 1126399 is about 104.0472849576.

The spelling of 1126399 in words is "one million, one hundred twenty-six thousand, three hundred ninety-nine".