12541514365 has 4 divisors (see below), whose sum is σ = 15049817244. Its totient is φ = 10033211488.

The previous prime is 12541514347. The next prime is 12541514407. The reversal of 12541514365 is 56341514521.

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 3597840324 + 8943674041 = 59982^2 + 94571^2 .

It is a cyclic number.

It is not a de Polignac number, because 12541514365 - 2⁵ = 12541514333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1254151432 + ... + 1254151441.

It is an arithmetic number, because the mean of its divisors is an integer number (3762454311).

Almost surely, 2^12541514365 is an apocalyptic number.

It is an amenable number.

12541514365 is a deficient number, since it is larger than the sum of its proper divisors (2508302879).

12541514365 is an equidigital number, since it uses as much as digits as its factorization.

12541514365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508302878.

The product of its digits is 72000, while the sum is 37.

The spelling of 12541514365 in words is "twelve billion, five hundred forty-one million, five hundred fourteen thousand, three hundred sixty-five".