7142273 has 4 divisors (see below), whose sum is σ = 7158228. Its totient is φ = 7126320.

The previous prime is 7142269. The next prime is 7142293. The reversal of 7142273 is 3722417.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3722417 = 691 ⋅5387.

It can be written as a sum of positive squares in 2 ways, for example, as 1129969 + 6012304 = 1063^2 + 2452^2 .

It is a cyclic number.

It is not a de Polignac number, because 7142273 - 2² = 7142269 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7142203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7286 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (1789557).

Almost surely, 2^7142273 is an apocalyptic number.

It is an amenable number.

7142273 is a deficient number, since it is larger than the sum of its proper divisors (15955).

7142273 is a wasteful number, since it uses less digits than its factorization.

7142273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15954.

The product of its digits is 2352, while the sum is 26.

The square root of 7142273 is about 2672.5031337680. The cubic root of 7142273 is about 192.5804285267.

The spelling of 7142273 in words is "seven million, one hundred forty-two thousand, two hundred seventy-three".