43153040521 has 8 divisors (see below), whose sum is σ = 45490004000. Its totient is φ = 40822652160.

The previous prime is 43153040509. The next prime is 43153040551. The reversal of 43153040521 is 12504035134.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43153040521 - 2⁹ = 43153040009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43153040521.

It is not an unprimeable number, because it can be changed into a prime (43153040551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630296 + ... + 1656553.

It is an arithmetic number, because the mean of its divisors is an integer number (5686250500).

Almost surely, 2^43153040521 is an apocalyptic number.

It is an amenable number.

43153040521 is a deficient number, since it is larger than the sum of its proper divisors (2336963479).

43153040521 is a wasteful number, since it uses less digits than its factorization.

43153040521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3287559.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 43153040521 its reverse (12504035134), we get a palindrome (55657075655).

The spelling of 43153040521 in words is "forty-three billion, one hundred fifty-three million, forty thousand, five hundred twenty-one".