944064181 has 2 divisors, whose sum is σ = 944064182. Its totient is φ = 944064180.

The previous prime is 944064169. The next prime is 944064203. The reversal of 944064181 is 181460449.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 902461681 + 41602500 = 30041^2 + 6450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-944064181 is a prime.

It is a super-2 number, since 2×944064181² = 1782514355694401522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 944064181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (944064131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472032090 + 472032091.

It is an arithmetic number, because the mean of its divisors is an integer number (472032091).

Almost surely, 2^944064181 is an apocalyptic number.

It is an amenable number.

944064181 is a deficient number, since it is larger than the sum of its proper divisors (1).

944064181 is an equidigital number, since it uses as much as digits as its factorization.

944064181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 944064181 is about 30725.6274305343. The cubic root of 944064181 is about 980.9958573929.

The spelling of 944064181 in words is "nine hundred forty-four million, sixty-four thousand, one hundred eighty-one".