5181913 has 8 divisors (see below), whose sum is σ = 5671296. Its totient is φ = 4695600.

The previous prime is 5181907. The next prime is 5181919. The reversal of 5181913 is 3191815.

It is an interprime number because it is at equal distance from previous prime (5181907) and next prime (5181919).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5181913 - 2⁵ = 5181881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5181919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4195 + ... + 5287.

It is an arithmetic number, because the mean of its divisors is an integer number (708912).

Almost surely, 2^5181913 is an apocalyptic number.

It is an amenable number.

5181913 is a deficient number, since it is larger than the sum of its proper divisors (489383).

5181913 is a wasteful number, since it uses less digits than its factorization.

5181913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535.

The product of its digits is 1080, while the sum is 28.

The square root of 5181913 is about 2276.3815585266. The cubic root of 5181913 is about 173.0467202049.

The spelling of 5181913 in words is "five million, one hundred eighty-one thousand, nine hundred thirteen".