44181601 has 2 divisors, whose sum is σ = 44181602. Its totient is φ = 44181600.

The previous prime is 44181583. The next prime is 44181607. The reversal of 44181601 is 10618144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43573201 + 608400 = 6601^2 + 780^2 .

It is a cyclic number.

It is not a de Polignac number, because 44181601 - 2⁵ = 44181569 is a prime.

It is not a weakly prime, because it can be changed into another prime (44181607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22090800 + 22090801.

It is an arithmetic number, because the mean of its divisors is an integer number (22090801).

Almost surely, 2^44181601 is an apocalyptic number.

It is an amenable number.

44181601 is a deficient number, since it is larger than the sum of its proper divisors (1).

44181601 is an equidigital number, since it uses as much as digits as its factorization.

44181601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 44181601 is about 6646.9241758877. The cubic root of 44181601 is about 353.5198598823.

Adding to 44181601 its reverse (10618144), we get a palindrome (54799745).

The spelling of 44181601 in words is "forty-four million, one hundred eighty-one thousand, six hundred one".