444553147 has 2 divisors, whose sum is σ = 444553148. Its totient is φ = 444553146.

The previous prime is 444553133. The next prime is 444553163. The reversal of 444553147 is 741355444.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444553147 is a prime.

It is not a weakly prime, because it can be changed into another prime (444557147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222276573 + 222276574.

It is an arithmetic number, because the mean of its divisors is an integer number (222276574).

Almost surely, 2^444553147 is an apocalyptic number.

444553147 is a deficient number, since it is larger than the sum of its proper divisors (1).

444553147 is an equidigital number, since it uses as much as digits as its factorization.

444553147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 134400, while the sum is 37.

The square root of 444553147 is about 21084.4290176424. The cubic root of 444553147 is about 763.2050399790.

The spelling of 444553147 in words is "four hundred forty-four million, five hundred fifty-three thousand, one hundred forty-seven".