6641129 has 4 divisors (see below), whose sum is σ = 7244880. Its totient is φ = 6037380.

The previous prime is 6641083. The next prime is 6641143. The reversal of 6641129 is 9211466.

6641129 = 772² + 773² + ... + 782².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6641129 - 2¹⁶ = 6575593 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6641149) 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 3 ways as a sum of consecutive naturals, for example, 301859 + ... + 301880.

It is an arithmetic number, because the mean of its divisors is an integer number (1811220).

Almost surely, 2^6641129 is an apocalyptic number.

It is an amenable number.

6641129 is a deficient number, since it is larger than the sum of its proper divisors (603751).

6641129 is a wasteful number, since it uses less digits than its factorization.

6641129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603750.

The product of its digits is 2592, while the sum is 29.

The square root of 6641129 is about 2577.0388045196. The cubic root of 6641129 is about 187.9665796184.

The spelling of 6641129 in words is "six million, six hundred forty-one thousand, one hundred twenty-nine".