12630191 has 12 divisors (see below), whose sum is σ = 14752512. Its totient is φ = 10781568.

The previous prime is 12630181. The next prime is 12630203. The reversal of 12630191 is 19103621.

It is a happy number.

12630191 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12630191 - 2⁶ = 12630127 is a prime.

It is a Duffinian number.

12630191 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12630131) 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, 18431 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (1229376).

Almost surely, 2^12630191 is an apocalyptic number.

12630191 is a deficient number, since it is larger than the sum of its proper divisors (2122321).

12630191 is an equidigital number, since it uses as much as digits as its factorization.

12630191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070 (or 1063 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 12630191 is about 3553.8980007873. The cubic root of 12630191 is about 232.8823845966.

It can be divided in two parts, 12630 and 191, that added together give a palindrome (12821).

The spelling of 12630191 in words is "twelve million, six hundred thirty thousand, one hundred ninety-one".