300123139 has 4 divisors (see below), whose sum is σ = 300275424. Its totient is φ = 299970856.

The previous prime is 300123137. The next prime is 300123143. The reversal of 300123139 is 931321003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 300123139 - 2¹ = 300123137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (300123137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73147 + ... + 77140.

It is an arithmetic number, because the mean of its divisors is an integer number (75068856).

Almost surely, 2^300123139 is an apocalyptic number.

300123139 is a deficient number, since it is larger than the sum of its proper divisors (152285).

300123139 is a wasteful number, since it uses less digits than its factorization.

300123139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152284.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 300123139 is about 17324.0624277333. The cubic root of 300123139 is about 669.5245301133.

The spelling of 300123139 in words is "three hundred million, one hundred twenty-three thousand, one hundred thirty-nine".