5181097 has 4 divisors (see below), whose sum is σ = 5228740. Its totient is φ = 5133456.

The previous prime is 5181079. The next prime is 5181101. The reversal of 5181097 is 7901815.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4713241 + 467856 = 2171^2 + 684^2 .

It is a cyclic number.

It is not a de Polignac number, because 5181097 - 2⁷ = 5180969 is a prime.

It is a super-2 number, since 2×5181097² = 53687532246818, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5181017) 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, 23658 + ... + 23875.

It is an arithmetic number, because the mean of its divisors is an integer number (1307185).

Almost surely, 2^5181097 is an apocalyptic number.

It is an amenable number.

5181097 is a deficient number, since it is larger than the sum of its proper divisors (47643).

5181097 is a wasteful number, since it uses less digits than its factorization.

5181097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47642.

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

The square root of 5181097 is about 2276.2023196544. The cubic root of 5181097 is about 173.0376364594.

The spelling of 5181097 in words is "five million, one hundred eighty-one thousand, ninety-seven".