7143491 has 2 divisors, whose sum is σ = 7143492. Its totient is φ = 7143490.

The previous prime is 7143469. The next prime is 7143517. The reversal of 7143491 is 1943417.

7143491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7143491 is a prime.

It is not a weakly prime, because it can be changed into another prime (7143401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571745 + 3571746.

It is an arithmetic number, because the mean of its divisors is an integer number (3571746).

Almost surely, 2^7143491 is an apocalyptic number.

7143491 is a deficient number, since it is larger than the sum of its proper divisors (1).

7143491 is an equidigital number, since it uses as much as digits as its factorization.

7143491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

The square root of 7143491 is about 2672.7310003066. The cubic root of 7143491 is about 192.5913750713.

The spelling of 7143491 in words is "seven million, one hundred forty-three thousand, four hundred ninety-one".