1442342189 has 2 divisors, whose sum is σ = 1442342190. Its totient is φ = 1442342188.

The previous prime is 1442342171. The next prime is 1442342191. The reversal of 1442342189 is 9812432441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1327144900 + 115197289 = 36430^2 + 10733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1442342189 - 2²⁰ = 1441293613 is a prime.

Together with 1442342191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1442342119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721171094 + 721171095.

It is an arithmetic number, because the mean of its divisors is an integer number (721171095).

Almost surely, 2^1442342189 is an apocalyptic number.

It is an amenable number.

1442342189 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442342189 is an equidigital number, since it uses as much as digits as its factorization.

1442342189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55296, while the sum is 38.

The square root of 1442342189 is about 37978.1804329802. The cubic root of 1442342189 is about 1129.8551486345.

The spelling of 1442342189 in words is "one billion, four hundred forty-two million, three hundred forty-two thousand, one hundred eighty-nine".