44642141 has 2 divisors, whose sum is σ = 44642142. Its totient is φ = 44642140.

The previous prime is 44642137. The next prime is 44642177. The reversal of 44642141 is 14124644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43178041 + 1464100 = 6571^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 44642141 - 2² = 44642137 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44642141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44642111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22321070 + 22321071.

It is an arithmetic number, because the mean of its divisors is an integer number (22321071).

Almost surely, 2^44642141 is an apocalyptic number.

It is an amenable number.

44642141 is a deficient number, since it is larger than the sum of its proper divisors (1).

44642141 is an equidigital number, since it uses as much as digits as its factorization.

44642141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 26.

The square root of 44642141 is about 6681.4774563715. The cubic root of 44642141 is about 354.7439560854.

Adding to 44642141 its reverse (14124644), we get a palindrome (58766785).

The spelling of 44642141 in words is "forty-four million, six hundred forty-two thousand, one hundred forty-one".