369944161 has 2 divisors, whose sum is σ = 369944162. Its totient is φ = 369944160.

The previous prime is 369944153. The next prime is 369944171. The reversal of 369944161 is 161449963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199798225 + 170145936 = 14135^2 + 13044^2 .

It is an emirp because it is prime and its reverse (161449963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 369944161 - 2³ = 369944153 is a prime.

It is not a weakly prime, because it can be changed into another prime (369944171) 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, 184972080 + 184972081.

It is an arithmetic number, because the mean of its divisors is an integer number (184972081).

Almost surely, 2^369944161 is an apocalyptic number.

It is an amenable number.

369944161 is a deficient number, since it is larger than the sum of its proper divisors (1).

369944161 is an equidigital number, since it uses as much as digits as its factorization.

369944161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 43.

The square root of 369944161 is about 19233.9325412148. The cubic root of 369944161 is about 717.8693188660.

The spelling of 369944161 in words is "three hundred sixty-nine million, nine hundred forty-four thousand, one hundred sixty-one".