5643135 has 16 divisors (see below), whose sum is σ = 10032480. Its totient is φ = 3009600.

The previous prime is 5643109. The next prime is 5643137. The reversal of 5643135 is 5313465.

5643135 is a `hidden beast` number, since 5 + 643 + 13 + 5 = 666.

It is not a de Polignac number, because 5643135 - 2⁵ = 5643103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5643099 and 5643108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5643137) 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, 20766 + ... + 21035.

It is an arithmetic number, because the mean of its divisors is an integer number (627030).

Almost surely, 2^5643135 is an apocalyptic number.

5643135 is a deficient number, since it is larger than the sum of its proper divisors (4389345).

5643135 is a wasteful number, since it uses less digits than its factorization.

5643135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41815 (or 41809 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 5643135 is about 2375.5283622807. The cubic root of 5643135 is about 178.0355839309.

It can be divided in two parts, 5643 and 135, that added together give a triangular number (5778 = T₁₀₇).

The spelling of 5643135 in words is "five million, six hundred forty-three thousand, one hundred thirty-five".