43144001 has 4 divisors (see below), whose sum is σ = 43198932. Its totient is φ = 43089072.

The previous prime is 43143983. The next prime is 43144027. The reversal of 43144001 is 10044134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10044134 = 2 ⋅5022067.

It can be written as a sum of positive squares in 2 ways, for example, as 6553600 + 36590401 = 2560^2 + 6049^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43144001 is a prime.

It is a super-2 number, since 2×43144001² = 3722809644576002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43144051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26270 + ... + 27863.

It is an arithmetic number, because the mean of its divisors is an integer number (10799733).

Almost surely, 2^43144001 is an apocalyptic number.

It is an amenable number.

43144001 is a deficient number, since it is larger than the sum of its proper divisors (54931).

43144001 is an equidigital number, since it uses as much as digits as its factorization.

43144001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54930.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 43144001 is about 6568.4093203758. The cubic root of 43144001 is about 350.7304500005.

Adding to 43144001 its reverse (10044134), we get a palindrome (53188135).

The spelling of 43144001 in words is "forty-three million, one hundred forty-four thousand, one".