44142247 has 2 divisors, whose sum is σ = 44142248. Its totient is φ = 44142246.

The previous prime is 44142239. The next prime is 44142253. The reversal of 44142247 is 74224144.

44142247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44142247 - 2³ = 44142239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44142227) 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, 22071123 + 22071124.

It is an arithmetic number, because the mean of its divisors is an integer number (22071124).

Almost surely, 2^44142247 is an apocalyptic number.

44142247 is a deficient number, since it is larger than the sum of its proper divisors (1).

44142247 is an equidigital number, since it uses as much as digits as its factorization.

44142247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7168, while the sum is 28.

The square root of 44142247 is about 6643.9631997777. The cubic root of 44142247 is about 353.4148647935.

The spelling of 44142247 in words is "forty-four million, one hundred forty-two thousand, two hundred forty-seven".