6540194 has 16 divisors (see below), whose sum is σ = 10404096. Its totient is φ = 3078000.

The previous prime is 6540187. The next prime is 6540217. The reversal of 6540194 is 4910456.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869 + ... + 3719.

It is an arithmetic number, because the mean of its divisors is an integer number (650256).

Almost surely, 2^6540194 is an apocalyptic number.

6540194 is a deficient number, since it is larger than the sum of its proper divisors (3863902).

6540194 is a wasteful number, since it uses less digits than its factorization.

6540194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 6540194 is about 2557.3803002291. The cubic root of 6540194 is about 187.0094459849.

The spelling of 6540194 in words is "six million, five hundred forty thousand, one hundred ninety-four".