12125415145 has 8 divisors (see below), whose sum is σ = 14755435200. Its totient is φ = 9563707440.

The previous prime is 12125415083. The next prime is 12125415199. The reversal of 12125415145 is 54151452121.

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

It is not a de Polignac number, because 12125415145 - 2¹⁹ = 12124890857 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17077695 + ... + 17078404.

It is an arithmetic number, because the mean of its divisors is an integer number (1844429400).

Almost surely, 2^12125415145 is an apocalyptic number.

It is an amenable number.

12125415145 is a deficient number, since it is larger than the sum of its proper divisors (2630020055).

12125415145 is an equidigital number, since it uses as much as digits as its factorization.

12125415145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34156175.

The product of its digits is 8000, while the sum is 31.

Adding to 12125415145 its reverse (54151452121), we get a palindrome (66276867266).

The spelling of 12125415145 in words is "twelve billion, one hundred twenty-five million, four hundred fifteen thousand, one hundred forty-five".