5156643 has 4 divisors (see below), whose sum is σ = 6875528. Its totient is φ = 3437760.

The previous prime is 5156609. The next prime is 5156663. The reversal of 5156643 is 3466515.

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

It is not a de Polignac number, because 5156643 - 2¹⁴ = 5140259 is a prime.

It is a D-number.

It is a Duffinian number.

5156643 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5156643.

It is not an unprimeable number, because it can be changed into a prime (5156663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 859438 + ... + 859443.

It is an arithmetic number, because the mean of its divisors is an integer number (1718882).

Almost surely, 2^5156643 is an apocalyptic number.

5156643 is a deficient number, since it is larger than the sum of its proper divisors (1718885).

5156643 is a wasteful number, since it uses less digits than its factorization.

5156643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718884.

The product of its digits is 10800, while the sum is 30.

The square root of 5156643 is about 2270.8242996762. The cubic root of 5156643 is about 172.7649698046.

The spelling of 5156643 in words is "five million, one hundred fifty-six thousand, six hundred forty-three".