6433145 has 4 divisors (see below), whose sum is σ = 7719780. Its totient is φ = 5146512.

The previous prime is 6433129. The next prime is 6433159. The reversal of 6433145 is 5413346.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5413346 = 2 ⋅2706673.

It can be written as a sum of positive squares in 2 ways, for example, as 2421136 + 4012009 = 1556^2 + 2003^2 .

It is a cyclic number.

It is not a de Polignac number, because 6433145 - 2⁴ = 6433129 is a prime.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 643310 + ... + 643319.

It is an arithmetic number, because the mean of its divisors is an integer number (1929945).

Almost surely, 2^6433145 is an apocalyptic number.

It is an amenable number.

6433145 is a deficient number, since it is larger than the sum of its proper divisors (1286635).

6433145 is a wasteful number, since it uses less digits than its factorization.

6433145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286634.

The product of its digits is 4320, while the sum is 26.

The square root of 6433145 is about 2536.3645242749. The cubic root of 6433145 is about 185.9835130104.

The spelling of 6433145 in words is "six million, four hundred thirty-three thousand, one hundred forty-five".