7140285 has 32 divisors (see below), whose sum is σ = 12804480. Its totient is φ = 3775104.

The previous prime is 7140283. The next prime is 7140299. The reversal of 7140285 is 5820417.

7140285 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7140285 - 2¹ = 7140283 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

7140285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140283) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30529 + ... + 30761.

It is an arithmetic number, because the mean of its divisors is an integer number (400140).

Almost surely, 2^7140285 is an apocalyptic number.

It is an amenable number.

7140285 is a deficient number, since it is larger than the sum of its proper divisors (5664195).

7140285 is a wasteful number, since it uses less digits than its factorization.

7140285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7140285 is about 2672.1311719300. The cubic root of 7140285 is about 192.5625590791.

The spelling of 7140285 in words is "seven million, one hundred forty thousand, two hundred eighty-five".