43144215133 has 4 divisors (see below), whose sum is σ = 43291465308. Its totient is φ = 42996964960.

The previous prime is 43144215091. The next prime is 43144215137. The reversal of 43144215133 is 33151244134.

43144215133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42089394649 + 1054820484 = 205157^2 + 32478^2 .

It is a cyclic number.

It is not a de Polignac number, because 43144215133 - 2²¹ = 43142117981 is a prime.

It is a super-2 number, since 2×43144215133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43144215095 and 43144215104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43144215137) 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, 73624648 + ... + 73625233.

It is an arithmetic number, because the mean of its divisors is an integer number (10822866327).

Almost surely, 2^43144215133 is an apocalyptic number.

It is an amenable number.

43144215133 is a deficient number, since it is larger than the sum of its proper divisors (147250175).

43144215133 is a wasteful number, since it uses less digits than its factorization.

43144215133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147250174.

The product of its digits is 17280, while the sum is 31.

Adding to 43144215133 its reverse (33151244134), we get a palindrome (76295459267).

The spelling of 43144215133 in words is "forty-three billion, one hundred forty-four million, two hundred fifteen thousand, one hundred thirty-three".