6431045 has 4 divisors (see below), whose sum is σ = 7717260. Its totient is φ = 5144832.

The previous prime is 6431039. The next prime is 6431093. The reversal of 6431045 is 5401346.

It is a happy number.

6431045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 776161 + 5654884 = 881^2 + 2378^2 .

It is a cyclic number.

It is not a de Polignac number, because 6431045 - 2²⁰ = 5382469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6431045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643100 + ... + 643109.

It is an arithmetic number, because the mean of its divisors is an integer number (1929315).

Almost surely, 2^6431045 is an apocalyptic number.

It is an amenable number.

6431045 is a deficient number, since it is larger than the sum of its proper divisors (1286215).

6431045 is a wasteful number, since it uses less digits than its factorization.

6431045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286214.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 6431045 is about 2535.9505121354. The cubic root of 6431045 is about 185.9632736675.

The spelling of 6431045 in words is "six million, four hundred thirty-one thousand, forty-five".