67500139 has 8 divisors (see below), whose sum is σ = 79803360. Its totient is φ = 55862016.

The previous prime is 67500077. The next prime is 67500151. The reversal of 67500139 is 93100576.

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

It is not a de Polignac number, because 67500139 - 2⁷ = 67500011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 67500139.

It is not an unprimeable number, because it can be changed into a prime (67500739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166054 + ... + 166459.

It is an arithmetic number, because the mean of its divisors is an integer number (9975420).

Almost surely, 2^67500139 is an apocalyptic number.

67500139 is a deficient number, since it is larger than the sum of its proper divisors (12303221).

67500139 is a wasteful number, since it uses less digits than its factorization.

67500139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332549.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 67500139 is about 8215.8468218437. The cubic root of 67500139 is about 407.1629219735.

The spelling of 67500139 in words is "sixty-seven million, five hundred thousand, one hundred thirty-nine".