755123903 has 4 divisors (see below), whose sum is σ = 772684968. Its totient is φ = 737562840.

The previous prime is 755123891. The next prime is 755123911. The reversal of 755123903 is 309321557.

It is a happy number.

755123903 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: 309321557 = 157 ⋅1970201.

It is a cyclic number.

It is not a de Polignac number, because 755123903 - 2¹⁸ = 754861759 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 (755123923) 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, 8780468 + ... + 8780553.

It is an arithmetic number, because the mean of its divisors is an integer number (193171242).

Almost surely, 2^755123903 is an apocalyptic number.

755123903 is a deficient number, since it is larger than the sum of its proper divisors (17561065).

755123903 is a wasteful number, since it uses less digits than its factorization.

755123903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17561064.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 755123903 is about 27479.5178815059. The cubic root of 755123903 is about 910.6246578582.

The spelling of 755123903 in words is "seven hundred fifty-five million, one hundred twenty-three thousand, nine hundred three".