755139 has 24 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 391440.

The previous prime is 755137. The next prime is 755143. The reversal of 755139 is 931557.

It is a happy number.

755139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 755139 - 2¹ = 755137 is a prime.

755139 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 755139.

It is not an unprimeable number, because it can be changed into a prime (755137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1384 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (53352).

2⁷⁵⁵¹³⁹ is an apocalyptic number.

755139 is a deficient number, since it is larger than the sum of its proper divisors (525309).

755139 is a wasteful number, since it uses less digits than its factorization.

755139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 488 counting only the distinct ones).

The product of its digits is 4725, while the sum is 30.

The square root of 755139 is about 868.9873416800. The cubic root of 755139 is about 91.0630726447.

The spelling of 755139 in words is "seven hundred fifty-five thousand, one hundred thirty-nine".