1122491 has 2 divisors, whose sum is σ = 1122492. Its totient is φ = 1122490.

The previous prime is 1122481. The next prime is 1122529. The reversal of 1122491 is 1942211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122491 - 2⁶ = 1122427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1122431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561245 + 561246.

It is an arithmetic number, because the mean of its divisors is an integer number (561246).

2^1122491 is an apocalyptic number.

1122491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122491 is an equidigital number, since it uses as much as digits as its factorization.

1122491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 1122491 is about 1059.4767576497. The cubic root of 1122491 is about 103.9268161168.

The spelling of 1122491 in words is "one million, one hundred twenty-two thousand, four hundred ninety-one".