1622743123 has 2 divisors, whose sum is σ = 1622743124. Its totient is φ = 1622743122.

The previous prime is 1622743099. The next prime is 1622743147. The reversal of 1622743123 is 3213472261.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1622743099) and next prime (1622743147).

It is a cyclic number.

It is not a de Polignac number, because 1622743123 - 2¹³ = 1622734931 is a prime.

It is not a weakly prime, because it can be changed into another prime (1622743153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811371561 + 811371562.

It is an arithmetic number, because the mean of its divisors is an integer number (811371562).

Almost surely, 2^1622743123 is an apocalyptic number.

1622743123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622743123 is an equidigital number, since it uses as much as digits as its factorization.

1622743123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 1622743123 is about 40283.2859012271. The cubic root of 1622743123 is about 1175.1228175226.

The spelling of 1622743123 in words is "one billion, six hundred twenty-two million, seven hundred forty-three thousand, one hundred twenty-three".