5605131 has 16 divisors (see below), whose sum is σ = 8640000. Its totient is φ = 3165888.

The previous prime is 5605111. The next prime is 5605147. The reversal of 5605131 is 1315065.

It is a happy number.

It is not a de Polignac number, because 5605131 - 2⁵ = 5605099 is a prime.

It is a super-2 number, since 2×5605131² = 62834987054322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

5605131 is a lucky number.

It is a nialpdrome in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 5605098 and 5605107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 370 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (540000).

Almost surely, 2^5605131 is an apocalyptic number.

5605131 is a deficient number, since it is larger than the sum of its proper divisors (3034869).

5605131 is a wasteful number, since it uses less digits than its factorization.

5605131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3098.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 5605131 is about 2367.5157866422. The cubic root of 5605131 is about 177.6350199284.

The spelling of 5605131 in words is "five million, six hundred five thousand, one hundred thirty-one".