6540148 has 6 divisors (see below), whose sum is σ = 11445266. Its totient is φ = 3270072.

The previous prime is 6540139. The next prime is 6540169. The reversal of 6540148 is 8410456.

It can be written as a sum of positive squares in only one way, i.e., 4112784 + 2427364 = 2028^2 + 1558^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817515 + ... + 817522.

Almost surely, 2^6540148 is an apocalyptic number.

It is an amenable number.

6540148 is a deficient number, since it is larger than the sum of its proper divisors (4905118).

6540148 is a wasteful number, since it uses less digits than its factorization.

6540148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635041 (or 1635039 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 6540148 is about 2557.3713066350. The cubic root of 6540148 is about 187.0090075446.

The spelling of 6540148 in words is "six million, five hundred forty thousand, one hundred forty-eight".