7142943 has 8 divisors (see below), whose sum is σ = 9644800. Its totient is φ = 4701528.

The previous prime is 7142939. The next prime is 7142951. The reversal of 7142943 is 3492417.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7142943 - 2² = 7142939 is a prime.

It is a super-3 number, since 3×7142943³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

7142943 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7142943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7142923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14833 + ... + 15306.

It is an arithmetic number, because the mean of its divisors is an integer number (1205600).

Almost surely, 2^7142943 is an apocalyptic number.

7142943 is a deficient number, since it is larger than the sum of its proper divisors (2501857).

7142943 is a wasteful number, since it uses less digits than its factorization.

7142943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30221.

The product of its digits is 6048, while the sum is 30.

The square root of 7142943 is about 2672.6284814766. The cubic root of 7142943 is about 192.5864501789.

The spelling of 7142943 in words is "seven million, one hundred forty-two thousand, nine hundred forty-three".