123806755 has 24 divisors (see below), whose sum is σ = 158447232. Its totient is φ = 92848896.

The previous prime is 123806741. The next prime is 123806779. The reversal of 123806755 is 557608321.

It is not a de Polignac number, because 123806755 - 2¹⁵ = 123773987 is a prime.

It is a super-2 number, since 2×123806755² = 30656225167260050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203662 + ... + 204268.

It is an arithmetic number, because the mean of its divisors is an integer number (6601968).

Almost surely, 2^123806755 is an apocalyptic number.

123806755 is a deficient number, since it is larger than the sum of its proper divisors (34640477).

123806755 is a wasteful number, since it uses less digits than its factorization.

123806755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 123806755 is about 11126.8483857739. The cubic root of 123806755 is about 498.4039171269.

The spelling of 123806755 in words is "one hundred twenty-three million, eight hundred six thousand, seven hundred fifty-five".