12500345 has 16 divisors (see below), whose sum is σ = 17623872. Its totient is φ = 8391360.

The previous prime is 12500329. The next prime is 12500351. The reversal of 12500345 is 54300521.

It is not a de Polignac number, because 12500345 - 2⁴ = 12500329 is a prime.

It is a Duffinian number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 8027 + ... + 9456.

It is an arithmetic number, because the mean of its divisors is an integer number (1101492).

Almost surely, 2^12500345 is an apocalyptic number.

It is an amenable number.

12500345 is a deficient number, since it is larger than the sum of its proper divisors (5123527).

12500345 is a wasteful number, since it uses less digits than its factorization.

12500345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17512.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 12500345 is about 3535.5826959640. The cubic root of 12500345 is about 232.0815767919.

Adding to 12500345 its reverse (54300521), we get a palindrome (66800866).

The spelling of 12500345 in words is "twelve million, five hundred thousand, three hundred forty-five".