1122899 has 2 divisors, whose sum is σ = 1122900. Its totient is φ = 1122898.

The previous prime is 1122887. The next prime is 1122923. The reversal of 1122899 is 9982211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9982211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1122899 - 2⁸ = 1122643 is a prime.

It is a Sophie Germain prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1122599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561449 + 561450.

It is an arithmetic number, because the mean of its divisors is an integer number (561450).

2^1122899 is an apocalyptic number.

1122899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122899 is an equidigital number, since it uses as much as digits as its factorization.

1122899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 32.

The square root of 1122899 is about 1059.6692880328. The cubic root of 1122899 is about 103.9394062711.

The spelling of 1122899 in words is "one million, one hundred twenty-two thousand, eight hundred ninety-nine".