7140493 has 4 divisors (see below), whose sum is σ = 7560540. Its totient is φ = 6720448.

The previous prime is 7140487. The next prime is 7140499. The reversal of 7140493 is 3940417.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7140487) and next prime (7140499).

It can be written as a sum of positive squares in 2 ways, for example, as 3052009 + 4088484 = 1747^2 + 2022^2 .

It is a cyclic number.

It is not a de Polignac number, because 7140493 - 2¹⁷ = 7009421 is a prime.

It is a Duffinian number.

7140493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140499) 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, 209998 + ... + 210031.

It is an arithmetic number, because the mean of its divisors is an integer number (1890135).

Almost surely, 2^7140493 is an apocalyptic number.

It is an amenable number.

7140493 is a deficient number, since it is larger than the sum of its proper divisors (420047).

7140493 is a wasteful number, since it uses less digits than its factorization.

7140493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420046.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 7140493 is about 2672.1700918916. The cubic root of 7140493 is about 192.5644288749.

The spelling of 7140493 in words is "seven million, one hundred forty thousand, four hundred ninety-three".