7142283 has 8 divisors (see below), whose sum is σ = 10581200. Its totient is φ = 4761504.

The previous prime is 7142269. The next prime is 7142293. The reversal of 7142283 is 3822417.

It is not a de Polignac number, because 7142283 - 2⁸ = 7142027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 264529 = 7142283 / (7 + 1 + 4 + 2 + 2 + 8 + 3).

It is an Ulam number.

It is a d-powerful number, because it can be written as 7 + 1 + 4⁹ + 2 + 2²¹ + 8 + 3¹⁴ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7142203) 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, 132238 + ... + 132291.

It is an arithmetic number, because the mean of its divisors is an integer number (1322650).

Almost surely, 2^7142283 is an apocalyptic number.

7142283 is a deficient number, since it is larger than the sum of its proper divisors (3438917).

7142283 is a wasteful number, since it uses less digits than its factorization.

7142283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264538 (or 264532 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 7142283 is about 2672.5050046726. The cubic root of 7142283 is about 192.5805184049.

Adding to 7142283 its sum of digits (27), we get a triangular number (7142310 = T₃₇₇₉).

The spelling of 7142283 in words is "seven million, one hundred forty-two thousand, two hundred eighty-three".