12158537245 has 8 divisors (see below), whose sum is σ = 15093356760. Its totient is φ = 9391421760.

The previous prime is 12158537203. The next prime is 12158537267. The reversal of 12158537245 is 54273585121.

12158537245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 537266041 + 11621271204 = 23179^2 + 107802^2 .

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

It is not a de Polignac number, because 12158537245 - 2¹¹ = 12158535197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41925846 + ... + 41926135.

It is an arithmetic number, because the mean of its divisors is an integer number (1886669595).

Almost surely, 2^12158537245 is an apocalyptic number.

It is an amenable number.

12158537245 is a deficient number, since it is larger than the sum of its proper divisors (2934819515).

12158537245 is an equidigital number, since it uses as much as digits as its factorization.

12158537245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83852015.

The product of its digits is 336000, while the sum is 43.

The spelling of 12158537245 in words is "twelve billion, one hundred fifty-eight million, five hundred thirty-seven thousand, two hundred forty-five".