7143457 has 2 divisors, whose sum is σ = 7143458. Its totient is φ = 7143456.

The previous prime is 7143443. The next prime is 7143467. The reversal of 7143457 is 7543417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7134241 + 9216 = 2671^2 + 96^2 .

It is a cyclic number.

It is not a de Polignac number, because 7143457 - 2¹⁵ = 7110689 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7143467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571728 + 3571729.

It is an arithmetic number, because the mean of its divisors is an integer number (3571729).

Almost surely, 2^7143457 is an apocalyptic number.

It is an amenable number.

7143457 is a deficient number, since it is larger than the sum of its proper divisors (1).

7143457 is an equidigital number, since it uses as much as digits as its factorization.

7143457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11760, while the sum is 31.

The square root of 7143457 is about 2672.7246397637. The cubic root of 7143457 is about 192.5910695196.

The spelling of 7143457 in words is "seven million, one hundred forty-three thousand, four hundred fifty-seven".