1622123 has 4 divisors (see below), whose sum is σ = 1717560. Its totient is φ = 1526688.

The previous prime is 1622081. The next prime is 1622141. The reversal of 1622123 is 3212261.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1622123 - 2⁶ = 1622059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 95419 = 1622123 / (1 + 6 + 2 + 2 + 1 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1622143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47693 + ... + 47726.

It is an arithmetic number, because the mean of its divisors is an integer number (429390).

2^1622123 is an apocalyptic number.

1622123 is a deficient number, since it is larger than the sum of its proper divisors (95437).

1622123 is an equidigital number, since it uses as much as digits as its factorization.

1622123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95436.

The product of its digits is 144, while the sum is 17.

The square root of 1622123 is about 1273.6259262437. The cubic root of 1622123 is about 117.4973109389.

Adding to 1622123 its reverse (3212261), we get a palindrome (4834384).

The spelling of 1622123 in words is "one million, six hundred twenty-two thousand, one hundred twenty-three".