5681137 has 16 divisors (see below), whose sum is σ = 7171200. Its totient is φ = 4371840.

The previous prime is 5681119. The next prime is 5681141. The reversal of 5681137 is 7311865.

It is not a de Polignac number, because 5681137 - 2¹⁹ = 5156849 is a prime.

It is a super-2 number, since 2×5681137² = 64550635225538, which contains 22 as substring.

It is a Duffinian number.

5681137 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5681099 and 5681108.

It is not an unprimeable number, because it can be changed into a prime (5681167) 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, 6439 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (448200).

Almost surely, 2^5681137 is an apocalyptic number.

It is an amenable number.

5681137 is a deficient number, since it is larger than the sum of its proper divisors (1490063).

5681137 is a wasteful number, since it uses less digits than its factorization.

5681137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936.

The product of its digits is 5040, while the sum is 31.

The square root of 5681137 is about 2383.5135829275. The cubic root of 5681137 is about 178.4343325942.

It can be divided in two parts, 568 and 1137, that multiplied together give a triangular number (645816 = T₁₁₃₆).

The spelling of 5681137 in words is "five million, six hundred eighty-one thousand, one hundred thirty-seven".