43144144401 has 4 divisors (see below), whose sum is σ = 57525525872. Its totient is φ = 28762762932.

The previous prime is 43144144397. The next prime is 43144144403. The reversal of 43144144401 is 10444144134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43144144401 - 2² = 43144144397 is a prime.

It is a super-2 number, since 2×43144144401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43144144403) 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, 7190690731 + ... + 7190690736.

It is an arithmetic number, because the mean of its divisors is an integer number (14381381468).

Almost surely, 2^43144144401 is an apocalyptic number.

It is an amenable number.

43144144401 is a deficient number, since it is larger than the sum of its proper divisors (14381381471).

43144144401 is a wasteful number, since it uses less digits than its factorization.

43144144401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14381381470.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 43144144401 its reverse (10444144134), we get a palindrome (53588288535).

The spelling of 43144144401 in words is "forty-three billion, one hundred forty-four million, one hundred forty-four thousand, four hundred one".