6540371 has 4 divisors (see below), whose sum is σ = 6552552. Its totient is φ = 6528192.

The previous prime is 6540337. The next prime is 6540383. The reversal of 6540371 is 1730456.

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

It is a cyclic number.

It is not a de Polignac number, because 6540371 - 2¹⁰ = 6539347 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6540371.

It is not an unprimeable number, because it can be changed into a prime (6540301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5246 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (1638138).

Almost surely, 2^6540371 is an apocalyptic number.

6540371 is a deficient number, since it is larger than the sum of its proper divisors (12181).

6540371 is a wasteful number, since it uses less digits than its factorization.

6540371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12180.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 6540371 is about 2557.4149057202. The cubic root of 6540371 is about 187.0111330080.

The spelling of 6540371 in words is "six million, five hundred forty thousand, three hundred seventy-one".