12512207 has 4 divisors (see below), whose sum is σ = 13056240. Its totient is φ = 11968176.

The previous prime is 12512191. The next prime is 12512231. The reversal of 12512207 is 70221521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70221521 = 179 ⋅392299.

It is a cyclic number.

It is not a de Polignac number, because 12512207 - 2⁴ = 12512191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512237) 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, 271982 + ... + 272027.

It is an arithmetic number, because the mean of its divisors is an integer number (3264060).

Almost surely, 2^12512207 is an apocalyptic number.

12512207 is a deficient number, since it is larger than the sum of its proper divisors (544033).

12512207 is an equidigital number, since it uses as much as digits as its factorization.

12512207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544032.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 12512207 is about 3537.2598151677. The cubic root of 12512207 is about 232.1549636019.

Adding to 12512207 its reverse (70221521), we get a palindrome (82733728).

The spelling of 12512207 in words is "twelve million, five hundred twelve thousand, two hundred seven".