5031181 has 16 divisors (see below), whose sum is σ = 5731200. Its totient is φ = 4390848.

The previous prime is 5031161. The next prime is 5031193. The reversal of 5031181 is 1811305.

It is a 3-Lehmer number, since φ(5031181) divides (5031181-1)³.

It is a cyclic number.

It is a Carmichael number.

It is not a de Polignac number, because 5031181 - 2¹⁷ = 4900109 is a prime.

It is a super-2 number, since 2×5031181² = 50625564509522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a deceptive number, since it divides R_5031180.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5031101) 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, 12475 + ... + 12871.

It is an arithmetic number, because the mean of its divisors is an integer number (358200).

It is a Poulet number, since it divides 2^5031180-1.

Almost surely, 2^5031181 is an apocalyptic number.

It is an amenable number.

5031181 is a deficient number, since it is larger than the sum of its proper divisors (700019).

5031181 is a wasteful number, since it uses less digits than its factorization.

5031181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 5031181 is about 2243.0294246844. The cubic root of 5031181 is about 171.3523167138.

Adding to 5031181 its reverse (1811305), we get a palindrome (6842486).

The spelling of 5031181 in words is "five million, thirty-one thousand, one hundred eighty-one".