44181961 has 2 divisors, whose sum is σ = 44181962. Its totient is φ = 44181960.

The previous prime is 44181937. The next prime is 44182007. The reversal of 44181961 is 16918144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36723600 + 7458361 = 6060^2 + 2731^2 .

It is a cyclic number.

It is not a de Polignac number, because 44181961 - 2¹¹ = 44179913 is a prime.

It is not a weakly prime, because it can be changed into another prime (44181931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22090980 + 22090981.

It is an arithmetic number, because the mean of its divisors is an integer number (22090981).

Almost surely, 2^44181961 is an apocalyptic number.

It is an amenable number.

44181961 is a deficient number, since it is larger than the sum of its proper divisors (1).

44181961 is an equidigital number, since it uses as much as digits as its factorization.

44181961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 34.

The square root of 44181961 is about 6646.9512560271. The cubic root of 44181961 is about 353.5208200618.

The spelling of 44181961 in words is "forty-four million, one hundred eighty-one thousand, nine hundred sixty-one".