5649143 has 4 divisors (see below), whose sum is σ = 5701080. Its totient is φ = 5597208.

The previous prime is 5649121. The next prime is 5649157. The reversal of 5649143 is 3419465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5649143 - 2⁶ = 5649079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5609143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25805 + ... + 26022.

It is an arithmetic number, because the mean of its divisors is an integer number (1425270).

Almost surely, 2^5649143 is an apocalyptic number.

5649143 is a deficient number, since it is larger than the sum of its proper divisors (51937).

5649143 is a wasteful number, since it uses less digits than its factorization.

5649143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51936.

The product of its digits is 12960, while the sum is 32.

The square root of 5649143 is about 2376.7925866596. The cubic root of 5649143 is about 178.0987437651.

The spelling of 5649143 in words is "five million, six hundred forty-nine thousand, one hundred forty-three".