12511207 has 2 divisors, whose sum is σ = 12511208. Its totient is φ = 12511206.

The previous prime is 12511199. The next prime is 12511211. The reversal of 12511207 is 70211521.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12511207 - 2³ = 12511199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12511277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255603 + 6255604.

It is an arithmetic number, because the mean of its divisors is an integer number (6255604).

Almost surely, 2^12511207 is an apocalyptic number.

12511207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12511207 is an equidigital number, since it uses as much as digits as its factorization.

12511207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12511207 is about 3537.1184599897. The cubic root of 12511207 is about 232.1487786779.

Adding to 12511207 its reverse (70211521), we get a palindrome (82722728).

The spelling of 12511207 in words is "twelve million, five hundred eleven thousand, two hundred seven".