300138 has 8 divisors (see below), whose sum is σ = 600288. Its totient is φ = 100044.

The previous prime is 300137. The next prime is 300149. The reversal of 300138 is 831003.

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

300138 is an admirable number.

It is a Smith number, since the sum of its digits (15) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (300137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25006 + ... + 25017.

It is an arithmetic number, because the mean of its divisors is an integer number (75036).

2³⁰⁰¹³⁸ is an apocalyptic number.

300138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

300138 is a wasteful number, since it uses less digits than its factorization.

300138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50028.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 300138 is about 547.8485192095. The cubic root of 300138 is about 66.9535580733.

The spelling of 300138 in words is "three hundred thousand, one hundred thirty-eight".