74443141 has 2 divisors, whose sum is σ = 74443142. Its totient is φ = 74443140.

The previous prime is 74443139. The next prime is 74443169. The reversal of 74443141 is 14134447.

It is an a-pointer prime, because the next prime (74443169) can be obtained adding 74443141 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69056100 + 5387041 = 8310^2 + 2321^2 .

It is an emirp because it is prime and its reverse (14134447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74443141 - 2¹ = 74443139 is a prime.

Together with 74443139, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74443181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37221570 + 37221571.

It is an arithmetic number, because the mean of its divisors is an integer number (37221571).

Almost surely, 2^74443141 is an apocalyptic number.

It is an amenable number.

74443141 is a deficient number, since it is larger than the sum of its proper divisors (1).

74443141 is an equidigital number, since it uses as much as digits as its factorization.

74443141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 74443141 is about 8628.0438686877. The cubic root of 74443141 is about 420.6700208805.

Adding to 74443141 its reverse (14134447), we get a palindrome (88577588).

It can be divided in two parts, 7444 and 3141, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 74443141 in words is "seventy-four million, four hundred forty-three thousand, one hundred forty-one".