6128305 has 8 divisors (see below), whose sum is σ = 7443072. Its totient is φ = 4843248.

The previous prime is 6128303. The next prime is 6128321. The reversal of 6128305 is 5038216.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6128305 - 2¹ = 6128303 is a prime.

It is a super-2 number, since 2×6128305² = 75112244346050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6128305.

It is not an unprimeable number, because it can be changed into a prime (6128303) 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 7 ways as a sum of consecutive naturals, for example, 6969 + ... + 7798.

It is an arithmetic number, because the mean of its divisors is an integer number (930384).

Almost surely, 2^6128305 is an apocalyptic number.

It is an amenable number.

6128305 is a deficient number, since it is larger than the sum of its proper divisors (1314767).

6128305 is a wasteful number, since it uses less digits than its factorization.

6128305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14855.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6128305 is about 2475.5413549363. The cubic root of 6128305 is about 182.9981884420.

The spelling of 6128305 in words is "six million, one hundred twenty-eight thousand, three hundred five".