6811542 has 24 divisors (see below), whose sum is σ = 15400944. Its totient is φ = 2171664.

The previous prime is 6811517. The next prime is 6811579. The reversal of 6811542 is 2451186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7813 + ... + 8640.

It is an arithmetic number, because the mean of its divisors is an integer number (641706).

Almost surely, 2^6811542 is an apocalyptic number.

6811542 is an abundant number, since it is smaller than the sum of its proper divisors (8589402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6811542 is a wasteful number, since it uses less digits than its factorization.

6811542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16484 (or 16481 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 6811542 is about 2609.8931012591. The cubic root of 6811542 is about 189.5607767498.

The spelling of 6811542 in words is "six million, eight hundred eleven thousand, five hundred forty-two".