123829755 has 16 divisors (see below), whose sum is σ = 226431744. Its totient is φ = 56607840.

The previous prime is 123829747. The next prime is 123829759. The reversal of 123829755 is 557928321.

It is a happy number.

It is not a de Polignac number, because 123829755 - 2³ = 123829747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123829759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589561 + ... + 589770.

It is an arithmetic number, because the mean of its divisors is an integer number (14151984).

Almost surely, 2^123829755 is an apocalyptic number.

123829755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123829755 is a deficient number, since it is larger than the sum of its proper divisors (102601989).

123829755 is a wasteful number, since it uses less digits than its factorization.

123829755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179346.

The product of its digits is 151200, while the sum is 42.

The square root of 123829755 is about 11127.8818739237. The cubic root of 123829755 is about 498.4347786102.

The spelling of 123829755 in words is "one hundred twenty-three million, eight hundred twenty-nine thousand, seven hundred fifty-five".