1822123 has 2 divisors, whose sum is σ = 1822124. Its totient is φ = 1822122.

The previous prime is 1822109. The next prime is 1822147. The reversal of 1822123 is 3212281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1822123 - 2⁵ = 1822091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1822123.

It is not a weakly prime, because it can be changed into another prime (1822823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911061 + 911062.

It is an arithmetic number, because the mean of its divisors is an integer number (911062).

2^1822123 is an apocalyptic number.

1822123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822123 is an equidigital number, since it uses as much as digits as its factorization.

1822123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 1822123 is about 1349.8603631487. The cubic root of 1822123 is about 122.1403696520.

The spelling of 1822123 in words is "one million, eight hundred twenty-two thousand, one hundred twenty-three".