5072181 has 4 divisors (see below), whose sum is σ = 6762912. Its totient is φ = 3381452.

The previous prime is 5072173. The next prime is 5072191. The reversal of 5072181 is 1812705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5072181 - 2³ = 5072173 is a prime.

It is a super-2 number, since 2×5072181² = 51454040193522, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5072141) 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, 845361 + ... + 845366.

It is an arithmetic number, because the mean of its divisors is an integer number (1690728).

Almost surely, 2^5072181 is an apocalyptic number.

It is an amenable number.

5072181 is a deficient number, since it is larger than the sum of its proper divisors (1690731).

5072181 is a wasteful number, since it uses less digits than its factorization.

5072181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690730.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 5072181 is about 2252.1503058189. The cubic root of 5072181 is about 171.8165183294.

Adding to 5072181 its reverse (1812705), we get a palindrome (6884886).

It can be divided in two parts, 5072 and 181, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 5072181 in words is "five million, seventy-two thousand, one hundred eighty-one".