5109191 has 4 divisors (see below), whose sum is σ = 5285400. Its totient is φ = 4932984.

The previous prime is 5109179. The next prime is 5109193. The reversal of 5109191 is 1919015.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5109191 - 2²² = 914887 is a prime.

It is a super-2 number, since 2×5109191² = 52207665348962, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5109191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5109193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88061 + ... + 88118.

It is an arithmetic number, because the mean of its divisors is an integer number (1321350).

Almost surely, 2^5109191 is an apocalyptic number.

5109191 is a deficient number, since it is larger than the sum of its proper divisors (176209).

5109191 is a wasteful number, since it uses less digits than its factorization.

5109191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176208.

The product of its (nonzero) digits is 405, while the sum is 26.

The square root of 5109191 is about 2260.3519637437. The cubic root of 5109191 is about 172.2334018102.

The spelling of 5109191 in words is "five million, one hundred nine thousand, one hundred ninety-one".