300139 has 8 divisors (see below), whose sum is σ = 349920. Its totient is φ = 252096.

The previous prime is 300137. The next prime is 300149. The reversal of 300139 is 931003.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 300139 - 2¹ = 300137 is a prime.

It is an Ulam number.

It is a Duffinian number.

300139 is a lucky number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 34 + ... + 775.

It is an arithmetic number, because the mean of its divisors is an integer number (43740).

2³⁰⁰¹³⁹ is an apocalyptic number.

300139 is a deficient number, since it is larger than the sum of its proper divisors (49781).

300139 is an equidigital number, since it uses as much as digits as its factorization.

300139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 300139 is about 547.8494318697. The cubic root of 300139 is about 66.9536324318.

The spelling of 300139 in words is "three hundred thousand, one hundred thirty-nine".