6542145 has 12 divisors (see below), whose sum is σ = 11339796. Its totient is φ = 3489120.

The previous prime is 6542141. The next prime is 6542171. The reversal of 6542145 is 5412456.

6542145 is a `hidden beast` number, since 654 + 2 + 1 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 4562496 = 1407^2 + 2136^2 .

It is not a de Polignac number, because 6542145 - 2² = 6542141 is a prime.

It is a super-2 number, since 2×6542145² = 85599322402050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6542141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72646 + ... + 72735.

It is an arithmetic number, because the mean of its divisors is an integer number (944983).

Almost surely, 2^6542145 is an apocalyptic number.

It is an amenable number.

6542145 is a deficient number, since it is larger than the sum of its proper divisors (4797651).

6542145 is a wasteful number, since it uses less digits than its factorization.

6542145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145392 (or 145389 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 6542145 is about 2557.7617168141. The cubic root of 6542145 is about 187.0280396819.

The spelling of 6542145 in words is "six million, five hundred forty-two thousand, one hundred forty-five".