944239081 has 2 divisors, whose sum is σ = 944239082. Its totient is φ = 944239080.

The previous prime is 944239073. The next prime is 944239099. The reversal of 944239081 is 180932449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 918635481 + 25603600 = 30309^2 + 5060^2 .

It is a cyclic number.

It is not a de Polignac number, because 944239081 - 2³ = 944239073 is a prime.

It is a super-2 number, since 2×944239081² = 1783174884175449122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (944236081) 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, 472119540 + 472119541.

It is an arithmetic number, because the mean of its divisors is an integer number (472119541).

Almost surely, 2^944239081 is an apocalyptic number.

It is an amenable number.

944239081 is a deficient number, since it is larger than the sum of its proper divisors (1).

944239081 is an equidigital number, since it uses as much as digits as its factorization.

944239081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 944239081 is about 30728.4734570398. The cubic root of 944239081 is about 981.0564343411.

The spelling of 944239081 in words is "nine hundred forty-four million, two hundred thirty-nine thousand, eighty-one".