12371445529 has 3 divisors (see below), whose sum is σ = 12371556757. Its totient is φ = 12371334302.

The previous prime is 12371445521. The next prime is 12371445533. The reversal of 12371445529 is 92554417321.

The square root of 12371445529 is 111227.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 12371445529 - 2³ = 12371445521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12371445521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55614 + ... + 166840.

Almost surely, 2^12371445529 is an apocalyptic number.

12371445529 is the 111227-th square number.

12371445529 is the 55614-th centered octagonal number.

It is an amenable number.

12371445529 is a deficient number, since it is larger than the sum of its proper divisors (111228).

12371445529 is an frugal number, since it uses more digits than its factorization.

12371445529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222454 (or 111227 counting only the distinct ones).

The product of its digits is 302400, while the sum is 43.

The spelling of 12371445529 in words is "twelve billion, three hundred seventy-one million, four hundred forty-five thousand, five hundred twenty-nine".