5678138 has 4 divisors (see below), whose sum is σ = 8517210. Its totient is φ = 2839068.

The previous prime is 5678129. The next prime is 5678143. The reversal of 5678138 is 8318765.

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

It can be written as a sum of positive squares in only one way, i.e., 4133089 + 1545049 = 2033^2 + 1243^2 .

It is a super-2 number, since 2×5678138² = 64482502294088, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1419533 + ... + 1419536.

Almost surely, 2^5678138 is an apocalyptic number.

5678138 is a deficient number, since it is larger than the sum of its proper divisors (2839072).

5678138 is a wasteful number, since it uses less digits than its factorization.

5678138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839071.

The product of its digits is 40320, while the sum is 38.

The square root of 5678138 is about 2382.8843866206. The cubic root of 5678138 is about 178.4029293291.

The spelling of 5678138 in words is "five million, six hundred seventy-eight thousand, one hundred thirty-eight".