1442205671 has 2 divisors, whose sum is σ = 1442205672. Its totient is φ = 1442205670.

The previous prime is 1442205643. The next prime is 1442205673. The reversal of 1442205671 is 1765022441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442205671 - 2⁶ = 1442205607 is a prime.

Together with 1442205673, 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 (1442205673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721102835 + 721102836.

It is an arithmetic number, because the mean of its divisors is an integer number (721102836).

Almost surely, 2^1442205671 is an apocalyptic number.

1442205671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442205671 is an equidigital number, since it uses as much as digits as its factorization.

1442205671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1442205671 is about 37976.3830689548. The cubic root of 1442205671 is about 1129.8195004985.

The spelling of 1442205671 in words is "one billion, four hundred forty-two million, two hundred five thousand, six hundred seventy-one".