6545138 has 8 divisors (see below), whose sum is σ = 9828588. Its totient is φ = 3268944.

The previous prime is 6545111. The next prime is 6545167. The reversal of 6545138 is 8315456.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6538249 + 6889 = 2557^2 + 83^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2420 + ... + 4352.

Almost surely, 2^6545138 is an apocalyptic number.

6545138 is a deficient number, since it is larger than the sum of its proper divisors (3283450).

6545138 is a wasteful number, since it uses less digits than its factorization.

6545138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628.

The product of its digits is 14400, while the sum is 32.

The square root of 6545138 is about 2558.3467317782. The cubic root of 6545138 is about 187.0565568109.

The spelling of 6545138 in words is "six million, five hundred forty-five thousand, one hundred thirty-eight".