43144741 has 2 divisors, whose sum is σ = 43144742. Its totient is φ = 43144740.

The previous prime is 43144733. The next prime is 43144747. The reversal of 43144741 is 14744134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40271716 + 2873025 = 6346^2 + 1695^2 .

It is a cyclic number.

It is not a de Polignac number, because 43144741 - 2³ = 43144733 is a prime.

It is a super-2 number, since 2×43144741² = 3722937351914162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43144747) 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, 21572370 + 21572371.

It is an arithmetic number, because the mean of its divisors is an integer number (21572371).

Almost surely, 2^43144741 is an apocalyptic number.

It is an amenable number.

43144741 is a deficient number, since it is larger than the sum of its proper divisors (1).

43144741 is an equidigital number, since it uses as much as digits as its factorization.

43144741 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 43144741 is about 6568.4656503631. The cubic root of 43144741 is about 350.7324552160.

Adding to 43144741 its reverse (14744134), we get a palindrome (57888875).

The spelling of 43144741 in words is "forty-three million, one hundred forty-four thousand, seven hundred forty-one".