5125181 has 4 divisors (see below), whose sum is σ = 5138364. Its totient is φ = 5112000.

The previous prime is 5125171. The next prime is 5125187. The reversal of 5125181 is 1815215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1815215 = 5 ⋅363043.

It can be written as a sum of positive squares in 2 ways, for example, as 4622500 + 502681 = 2150^2 + 709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5125181 is a prime.

It is a super-2 number, since 2×5125181² = 52534960565522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5125187) 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, 5990 + ... + 6791.

It is an arithmetic number, because the mean of its divisors is an integer number (1284591).

Almost surely, 2^5125181 is an apocalyptic number.

It is an amenable number.

5125181 is a deficient number, since it is larger than the sum of its proper divisors (13183).

5125181 is a wasteful number, since it uses less digits than its factorization.

5125181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13182.

The product of its digits is 400, while the sum is 23.

The square root of 5125181 is about 2263.8862603938. The cubic root of 5125181 is about 172.4128916776.

The spelling of 5125181 in words is "five million, one hundred twenty-five thousand, one hundred eighty-one".