6142138 has 4 divisors (see below), whose sum is σ = 9213210. Its totient is φ = 3071068.

The previous prime is 6142109. The next prime is 6142141. The reversal of 6142138 is 8312416.

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., 5968249 + 173889 = 2443^2 + 417^2 .

It is a super-2 number, since 2×6142138² = 75451718422088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1535533 + ... + 1535536.

Almost surely, 2^6142138 is an apocalyptic number.

6142138 is a deficient number, since it is larger than the sum of its proper divisors (3071072).

6142138 is a wasteful number, since it uses less digits than its factorization.

6142138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071071.

The product of its digits is 1152, while the sum is 25.

The square root of 6142138 is about 2478.3337144138. Note that the first 3 decimals coincide. The cubic root of 6142138 is about 183.1357747002.

The spelling of 6142138 in words is "six million, one hundred forty-two thousand, one hundred thirty-eight".