5656138 has 8 divisors (see below), whose sum is σ = 8983332. Its totient is φ = 2661696.

The previous prime is 5656117. The next prime is 5656139. The reversal of 5656138 is 8316565.

It can be written as a sum of positive squares in 2 ways, for example, as 4609609 + 1046529 = 2147^2 + 1023^2 .

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

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 166357 = 5656138 / (5 + 6 + 5 + 6 + 1 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (5656139) 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 3 ways as a sum of consecutive naturals, for example, 83145 + ... + 83212.

Almost surely, 2^5656138 is an apocalyptic number.

5656138 is a deficient number, since it is larger than the sum of its proper divisors (3327194).

5656138 is a wasteful number, since it uses less digits than its factorization.

5656138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166376.

The product of its digits is 21600, while the sum is 34.

The square root of 5656138 is about 2378.2636523313. The cubic root of 5656138 is about 178.1722231622.

The spelling of 5656138 in words is "five million, six hundred fifty-six thousand, one hundred thirty-eight".