5181367 has 4 divisors (see below), whose sum is σ = 5254416. Its totient is φ = 5108320.

The previous prime is 5181353. The next prime is 5181383. The reversal of 5181367 is 7631815.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7631815 = 5 ⋅1526363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5181367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5181307) 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, 36418 + ... + 36559.

It is an arithmetic number, because the mean of its divisors is an integer number (1313604).

Almost surely, 2^5181367 is an apocalyptic number.

5181367 is a deficient number, since it is larger than the sum of its proper divisors (73049).

5181367 is an equidigital number, since it uses as much as digits as its factorization.

5181367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73048.

The product of its digits is 5040, while the sum is 31.

The square root of 5181367 is about 2276.2616281965. The cubic root of 5181367 is about 173.0406422161.

It can be divided in two parts, 51 and 81367, that added together give a palindrome (81418).

The spelling of 5181367 in words is "five million, one hundred eighty-one thousand, three hundred sixty-seven".