5097181 has 4 divisors (see below), whose sum is σ = 5102172. Its totient is φ = 5092192.

The previous prime is 5097179. The next prime is 5097193. The reversal of 5097181 is 1817905.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1817905 = 5 ⋅363581.

It can be written as a sum of positive squares in 2 ways, for example, as 2374681 + 2722500 = 1541^2 + 1650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5097181 - 2¹ = 5097179 is a prime.

It is a super-2 number, since 2×5097181² = 51962508293522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5097151) 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, 346 + ... + 3211.

It is an arithmetic number, because the mean of its divisors is an integer number (1275543).

Almost surely, 2^5097181 is an apocalyptic number.

It is an amenable number.

5097181 is a deficient number, since it is larger than the sum of its proper divisors (4991).

5097181 is a wasteful number, since it uses less digits than its factorization.

5097181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4990.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 5097181 is about 2257.6937347656. The cubic root of 5097181 is about 172.0983415448.

The spelling of 5097181 in words is "five million, ninety-seven thousand, one hundred eighty-one".