5031681 has 8 divisors (see below), whose sum is σ = 6778464. Its totient is φ = 3319680.

The previous prime is 5031673. The next prime is 5031683. The reversal of 5031681 is 1861305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5031681 - 2³ = 5031673 is a prime.

It is a super-2 number, since 2×5031681² = 50635627371522, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5031683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8355 + ... + 8936.

It is an arithmetic number, because the mean of its divisors is an integer number (847308).

Almost surely, 2^5031681 is an apocalyptic number.

It is an amenable number.

5031681 is a deficient number, since it is larger than the sum of its proper divisors (1746783).

5031681 is a wasteful number, since it uses less digits than its factorization.

5031681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17391.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 5031681 is about 2243.1408783222. The cubic root of 5031681 is about 171.3579928708.

Adding to 5031681 its reverse (1861305), we get a palindrome (6892986).

The spelling of 5031681 in words is "five million, thirty-one thousand, six hundred eighty-one".