75139127 has 4 divisors (see below), whose sum is σ = 85873296. Its totient is φ = 64404960.

The previous prime is 75139121. The next prime is 75139139. The reversal of 75139127 is 72193157.

It is a happy number.

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 75139127 - 2⁸ = 75138871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75139121) 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 3 ways as a sum of consecutive naturals, for example, 5367074 + ... + 5367087.

It is an arithmetic number, because the mean of its divisors is an integer number (21468324).

Almost surely, 2^75139127 is an apocalyptic number.

75139127 is a deficient number, since it is larger than the sum of its proper divisors (10734169).

75139127 is a wasteful number, since it uses less digits than its factorization.

75139127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10734168.

The product of its digits is 13230, while the sum is 35.

The square root of 75139127 is about 8668.2828172597. The cubic root of 75139127 is about 421.9769365891.

The spelling of 75139127 in words is "seventy-five million, one hundred thirty-nine thousand, one hundred twenty-seven".