5181722 has 32 divisors (see below), whose sum is σ = 9725184. Its totient is φ = 2016000.

The previous prime is 5181721. The next prime is 5181733. The reversal of 5181722 is 2271815.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 5181691 and 5181700.

It is not an unprimeable number, because it can be changed into a prime (5181721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12722 + ... + 13122.

It is an arithmetic number, because the mean of its divisors is an integer number (303912).

Almost surely, 2^5181722 is an apocalyptic number.

5181722 is a deficient number, since it is larger than the sum of its proper divisors (4543462).

5181722 is a wasteful number, since it uses less digits than its factorization.

5181722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494.

The product of its digits is 1120, while the sum is 26.

The square root of 5181722 is about 2276.3396055949. The cubic root of 5181722 is about 173.0445940705.

The spelling of 5181722 in words is "five million, one hundred eighty-one thousand, seven hundred twenty-two".