8755139 has 4 divisors (see below), whose sum is σ = 8787024. Its totient is φ = 8723256.

The previous prime is 8755121. The next prime is 8755141. The reversal of 8755139 is 9315578.

8755139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9315578 = 2 ⋅4657789.

It is a cyclic number.

It is not a de Polignac number, because 8755139 - 2⁸ = 8754883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8755189) 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, 15527 + ... + 16080.

It is an arithmetic number, because the mean of its divisors is an integer number (2196756).

Almost surely, 2^8755139 is an apocalyptic number.

8755139 is a deficient number, since it is larger than the sum of its proper divisors (31885).

8755139 is a wasteful number, since it uses less digits than its factorization.

8755139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31884.

The product of its digits is 37800, while the sum is 38.

The square root of 8755139 is about 2958.9084135877. The cubic root of 8755139 is about 206.1045985908.

The spelling of 8755139 in words is "eight million, seven hundred fifty-five thousand, one hundred thirty-nine".