6541394 has 4 divisors (see below), whose sum is σ = 9812094. Its totient is φ = 3270696.

The previous prime is 6541393. The next prime is 6541429. The reversal of 6541394 is 4931456.

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

It can be written as a sum of positive squares in only one way, i.e., 5230369 + 1311025 = 2287^2 + 1145^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6541394.

It is not an unprimeable number, because it can be changed into a prime (6541393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1635347 + ... + 1635350.

Almost surely, 2^6541394 is an apocalyptic number.

6541394 is a deficient number, since it is larger than the sum of its proper divisors (3270700).

6541394 is a wasteful number, since it uses less digits than its factorization.

6541394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270699.

The product of its digits is 12960, while the sum is 32.

The square root of 6541394 is about 2557.6149045546. The cubic root of 6541394 is about 187.0208828328.

It can be divided in two parts, 654 and 1394, that added together give a 11-th power (2048 = 2¹¹).

The spelling of 6541394 in words is "six million, five hundred forty-one thousand, three hundred ninety-four".