6129645 has 8 divisors (see below), whose sum is σ = 9807456. Its totient is φ = 3269136.

The previous prime is 6129637. The next prime is 6129649. The reversal of 6129645 is 5469216.

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

It is not a de Polignac number, because 6129645 - 2³ = 6129637 is a prime.

It is a super-3 number, since 3×6129645³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6129649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204307 + ... + 204336.

It is an arithmetic number, because the mean of its divisors is an integer number (1225932).

Almost surely, 2^6129645 is an apocalyptic number.

It is an amenable number.

6129645 is a deficient number, since it is larger than the sum of its proper divisors (3677811).

6129645 is a wasteful number, since it uses less digits than its factorization.

6129645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408651.

The product of its digits is 12960, while the sum is 33.

The square root of 6129645 is about 2475.8119880152. The cubic root of 6129645 is about 183.0115254469.

The spelling of 6129645 in words is "six million, one hundred twenty-nine thousand, six hundred forty-five".