74138 has 8 divisors (see below), whose sum is σ = 117120. Its totient is φ = 35100.

The previous prime is 74131. The next prime is 74143. The reversal of 74138 is 83147.

It is a happy number.

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 74138.

It is not an unprimeable number, because it can be changed into a prime (74131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 1013.

It is an arithmetic number, because the mean of its divisors is an integer number (14640).

2⁷⁴¹³⁸ is an apocalyptic number.

74138 is a deficient number, since it is larger than the sum of its proper divisors (42982).

74138 is a wasteful number, since it uses less digits than its factorization.

74138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972.

The product of its digits is 672, while the sum is 23.

The square root of 74138 is about 272.2829410742. The cubic root of 74138 is about 42.0094460991.

Subtracting 74138 from its reverse (83147), we obtain a palindrome (9009).

It can be divided in two parts, 74 and 138, that added together give a palindrome (212).

The spelling of 74138 in words is "seventy-four thousand, one hundred thirty-eight".