444455147 has 2 divisors, whose sum is σ = 444455148. Its totient is φ = 444455146.

The previous prime is 444455119. The next prime is 444455149. The reversal of 444455147 is 741554444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444455147 - 2⁸ = 444454891 is a prime.

Together with 444455149, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_23574656 and since 444455147 and 23574656 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 444455147.

It is not a weakly prime, because it can be changed into another prime (444455149) 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, 222227573 + 222227574.

It is an arithmetic number, because the mean of its divisors is an integer number (222227574).

Almost surely, 2^444455147 is an apocalyptic number.

444455147 is a deficient number, since it is larger than the sum of its proper divisors (1).

444455147 is an equidigital number, since it uses as much as digits as its factorization.

444455147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 179200, while the sum is 38.

The square root of 444455147 is about 21082.1048996536. The cubic root of 444455147 is about 763.1489540036.

The spelling of 444455147 in words is "four hundred forty-four million, four hundred fifty-five thousand, one hundred forty-seven".