6445159 has 16 divisors (see below), whose sum is σ = 7995456. Its totient is φ = 5068800.

The previous prime is 6445151. The next prime is 6445169. The reversal of 6445159 is 9515446.

It is a cyclic number.

It is not a de Polignac number, because 6445159 - 2³ = 6445151 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4219 + ... + 5539.

It is an arithmetic number, because the mean of its divisors is an integer number (499716).

Almost surely, 2^6445159 is an apocalyptic number.

6445159 is a deficient number, since it is larger than the sum of its proper divisors (1550297).

6445159 is a wasteful number, since it uses less digits than its factorization.

6445159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386.

The product of its digits is 21600, while the sum is 34.

The square root of 6445159 is about 2538.7317699986. The cubic root of 6445159 is about 186.0992167312.

The spelling of 6445159 in words is "six million, four hundred forty-five thousand, one hundred fifty-nine".