5146809 has 4 divisors (see below), whose sum is σ = 6862416. Its totient is φ = 3431204.

The previous prime is 5146793. The next prime is 5146819. The reversal of 5146809 is 9086415.

5146809 is nontrivially palindromic in base 2.

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 5146809 - 2⁴ = 5146793 is a prime.

It is a D-number.

5146809 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5146809.

It is not an unprimeable number, because it can be changed into a prime (5146819) 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 3 ways as a sum of consecutive naturals, for example, 857799 + ... + 857804.

It is an arithmetic number, because the mean of its divisors is an integer number (1715604).

Almost surely, 2^5146809 is an apocalyptic number.

It is an amenable number.

5146809 is a deficient number, since it is larger than the sum of its proper divisors (1715607).

5146809 is a wasteful number, since it uses less digits than its factorization.

5146809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715606.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 5146809 is about 2268.6579733402. The cubic root of 5146809 is about 172.6550758374.

The spelling of 5146809 in words is "five million, one hundred forty-six thousand, eight hundred nine".