10042138 has 8 divisors (see below), whose sum is σ = 15949332. Its totient is φ = 4725696.

The previous prime is 10042103. The next prime is 10042141. The reversal of 10042138 is 83124001.

10042138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8838729 + 1203409 = 2973^2 + 1097^2 .

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

It is a super-2 number, since 2×10042138² = 201689071222088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147645 + ... + 147712.

Almost surely, 2^10042138 is an apocalyptic number.

10042138 is a deficient number, since it is larger than the sum of its proper divisors (5907194).

10042138 is a wasteful number, since it uses less digits than its factorization.

10042138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295376.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 10042138 is about 3168.9332590006. The cubic root of 10042138 is about 215.7456568433.

Adding to 10042138 its reverse (83124001), we get a palindrome (93166139).

The spelling of 10042138 in words is "ten million, forty-two thousand, one hundred thirty-eight".