6128551 has 16 divisors (see below), whose sum is σ = 7626528. Its totient is φ = 4838400.

The previous prime is 6128539. The next prime is 6128567. The reversal of 6128551 is 1558216.

It is a cyclic number.

It is not a de Polignac number, because 6128551 - 2⁹ = 6128039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6128501) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1171 + ... + 3691.

It is an arithmetic number, because the mean of its divisors is an integer number (476658).

Almost surely, 2^6128551 is an apocalyptic number.

6128551 is a deficient number, since it is larger than the sum of its proper divisors (1497977).

6128551 is a wasteful number, since it uses less digits than its factorization.

6128551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562.

The product of its digits is 2400, while the sum is 28.

The square root of 6128551 is about 2475.5910405396. The cubic root of 6128551 is about 183.0006370229. Note that the first 3 decimals are identical.

The spelling of 6128551 in words is "six million, one hundred twenty-eight thousand, five hundred fifty-one".