12250017 has 12 divisors (see below), whose sum is σ = 19055764. Its totient is φ = 7538400.

The previous prime is 12250009. The next prime is 12250019. The reversal of 12250017 is 71005221.

It can be written as a sum of positive squares in 2 ways, for example, as 5716881 + 6533136 = 2391^2 + 2556^2 .

It is not a de Polignac number, because 12250017 - 2³ = 12250009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12250019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52234 + ... + 52467.

Almost surely, 2^12250017 is an apocalyptic number.

It is an amenable number.

12250017 is a deficient number, since it is larger than the sum of its proper divisors (6805747).

12250017 is a wasteful number, since it uses less digits than its factorization.

12250017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104720 (or 104717 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 12250017 is about 3500.0024285706. The cubic root of 12250017 is about 230.5219212388.

Adding to 12250017 its reverse (71005221), we get a palindrome (83255238).

The spelling of 12250017 in words is "twelve million, two hundred fifty thousand, seventeen".