755120489 has 4 divisors (see below), whose sum is σ = 755379156. Its totient is φ = 754861824.

The previous prime is 755120449. The next prime is 755120491. The reversal of 755120489 is 984021557.

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

It can be written as a sum of positive squares in 2 ways, for example, as 677821225 + 77299264 = 26035^2 + 8792^2 .

It is a cyclic number.

It is not a de Polignac number, because 755120489 - 2²⁴ = 738343273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (755120449) 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, 124904 + ... + 130809.

It is an arithmetic number, because the mean of its divisors is an integer number (188844789).

Almost surely, 2^755120489 is an apocalyptic number.

It is an amenable number.

755120489 is a deficient number, since it is larger than the sum of its proper divisors (258667).

755120489 is a wasteful number, since it uses less digits than its factorization.

755120489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258666.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 755120489 is about 27479.4557624419. The cubic root of 755120489 is about 910.6232855107.

The spelling of 755120489 in words is "seven hundred fifty-five million, one hundred twenty thousand, four hundred eighty-nine".