7142743 has 2 divisors, whose sum is σ = 7142744. Its totient is φ = 7142742.

The previous prime is 7142713. The next prime is 7142749. The reversal of 7142743 is 3472417.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7142743 - 2¹⁷ = 7011671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7142749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571371 + 3571372.

It is an arithmetic number, because the mean of its divisors is an integer number (3571372).

Almost surely, 2^7142743 is an apocalyptic number.

7142743 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142743 is an equidigital number, since it uses as much as digits as its factorization.

7142743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 28.

The square root of 7142743 is about 2672.5910648657. The cubic root of 7142743 is about 192.5846527102.

The spelling of 7142743 in words is "seven million, one hundred forty-two thousand, seven hundred forty-three".