7145191 has 2 divisors, whose sum is σ = 7145192. Its totient is φ = 7145190.

The previous prime is 7145189. The next prime is 7145209. The reversal of 7145191 is 1915417.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7145191 - 2¹ = 7145189 is a prime.

Together with 7145189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7145101) 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, 3572595 + 3572596.

It is an arithmetic number, because the mean of its divisors is an integer number (3572596).

Almost surely, 2^7145191 is an apocalyptic number.

7145191 is a deficient number, since it is larger than the sum of its proper divisors (1).

7145191 is an equidigital number, since it uses as much as digits as its factorization.

7145191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 28.

The square root of 7145191 is about 2673.0490081553. The cubic root of 7145191 is about 192.6066514196.

The spelling of 7145191 in words is "seven million, one hundred forty-five thousand, one hundred ninety-one".