12954191 has 2 divisors, whose sum is σ = 12954192. Its totient is φ = 12954190.

The previous prime is 12954173. The next prime is 12954199. The reversal of 12954191 is 19145921.

12954191 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12954191 is a prime.

It is a super-2 number, since 2×12954191² = 335622128928962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12954199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6477095 + 6477096.

It is an arithmetic number, because the mean of its divisors is an integer number (6477096).

Almost surely, 2^12954191 is an apocalyptic number.

12954191 is a deficient number, since it is larger than the sum of its proper divisors (1).

12954191 is an equidigital number, since it uses as much as digits as its factorization.

12954191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 32.

The square root of 12954191 is about 3599.1931040165. The cubic root of 12954191 is about 234.8569583702.

The spelling of 12954191 in words is "twelve million, nine hundred fifty-four thousand, one hundred ninety-one".