12153109945541 has 4 divisors (see below), whose sum is σ = 12278399738892. Its totient is φ = 12027820152192.

The previous prime is 12153109945511. The next prime is 12153109945633. The reversal of 12153109945541 is 14554990135121.

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 2449131100900 + 9703978844641 = 1564970^2 + 3115121^2 .

It is a cyclic number.

It is not a de Polignac number, because 12153109945541 - 2⁶ = 12153109945477 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 12153109945541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12153109945511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62644896530 + ... + 62644896723.

It is an arithmetic number, because the mean of its divisors is an integer number (3069599934723).

Almost surely, 2^{12153109945541} is an apocalyptic number.

It is an amenable number.

12153109945541 is a deficient number, since it is larger than the sum of its proper divisors (125289793351).

12153109945541 is an equidigital number, since it uses as much as digits as its factorization.

12153109945541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125289793350.

The product of its (nonzero) digits is 972000, while the sum is 50.

The spelling of 12153109945541 in words is "twelve trillion, one hundred fifty-three billion, one hundred nine million, nine hundred forty-five thousand, five hundred forty-one".