12650045 has 4 divisors (see below), whose sum is σ = 15180060. Its totient is φ = 10120032.

The previous prime is 12650021. The next prime is 12650051. The reversal of 12650045 is 54005621.

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 2524921 + 10125124 = 1589^2 + 3182^2 .

It is a cyclic number.

It is not a de Polignac number, because 12650045 - 2⁸ = 12649789 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12650045.

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, 1265000 + ... + 1265009.

It is an arithmetic number, because the mean of its divisors is an integer number (3795015).

Almost surely, 2^12650045 is an apocalyptic number.

It is an amenable number.

12650045 is a deficient number, since it is larger than the sum of its proper divisors (2530015).

12650045 is an equidigital number, since it uses as much as digits as its factorization.

12650045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2530014.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 12650045 is about 3556.6901748676. The cubic root of 12650045 is about 233.0043470242.

Adding to 12650045 its reverse (54005621), we get a palindrome (66655666).

The spelling of 12650045 in words is "twelve million, six hundred fifty thousand, forty-five".