1622144423 has 2 divisors, whose sum is σ = 1622144424. Its totient is φ = 1622144422.

The previous prime is 1622144401. The next prime is 1622144479. The reversal of 1622144423 is 3244412261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1622144423 - 2²² = 1617950119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1622144123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811072211 + 811072212.

It is an arithmetic number, because the mean of its divisors is an integer number (811072212).

Almost surely, 2^1622144423 is an apocalyptic number.

1622144423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622144423 is an equidigital number, since it uses as much as digits as its factorization.

1622144423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 29.

The square root of 1622144423 is about 40275.8540939854. The cubic root of 1622144423 is about 1174.9782818983.

Adding to 1622144423 its reverse (3244412261), we get a palindrome (4866556684).

The spelling of 1622144423 in words is "one billion, six hundred twenty-two million, one hundred forty-four thousand, four hundred twenty-three".