6431109 has 16 divisors (see below), whose sum is σ = 8807040. Its totient is φ = 4173120.

The previous prime is 6431093. The next prime is 6431141. The reversal of 6431109 is 9011346.

It is not a de Polignac number, because 6431109 - 2⁴ = 6431093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6431189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23079 + ... + 23355.

It is an arithmetic number, because the mean of its divisors is an integer number (550440).

Almost surely, 2^6431109 is an apocalyptic number.

It is an amenable number.

6431109 is a deficient number, since it is larger than the sum of its proper divisors (2375931).

6431109 is a wasteful number, since it uses less digits than its factorization.

6431109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 6431109 is about 2535.9631306468. The cubic root of 6431109 is about 185.9638905507.

The spelling of 6431109 in words is "six million, four hundred thirty-one thousand, one hundred nine".