12850001 has 4 divisors (see below), whose sum is σ = 12859392. Its totient is φ = 12840612.

The previous prime is 12849973. The next prime is 12850039. The reversal of 12850001 is 10005821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10005821 = 7 ⋅1429403.

It is a cyclic number.

It is not a de Polignac number, because 12850001 - 2⁶ = 12849937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12850051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201 + ... + 5526.

It is an arithmetic number, because the mean of its divisors is an integer number (3214848).

Almost surely, 2^12850001 is an apocalyptic number.

It is an amenable number.

12850001 is a deficient number, since it is larger than the sum of its proper divisors (9391).

12850001 is an equidigital number, since it uses as much as digits as its factorization.

12850001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9390.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 12850001 is about 3584.6898052691. The cubic root of 12850001 is about 234.2256145771.

Adding to 12850001 its reverse (10005821), we get a palindrome (22855822).

The spelling of 12850001 in words is "twelve million, eight hundred fifty thousand, one".