123999474 has 16 divisors (see below), whose sum is σ = 252203040. Its totient is φ = 40632480.

The previous prime is 123999451. The next prime is 123999481. The reversal of 123999474 is 474999321.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 174787 + ... + 175494.

It is an arithmetic number, because the mean of its divisors is an integer number (15762690).

Almost surely, 2^123999474 is an apocalyptic number.

123999474 is an abundant number, since it is smaller than the sum of its proper divisors (128203566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123999474 is a wasteful number, since it uses less digits than its factorization.

123999474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350345.

The product of its digits is 489888, while the sum is 48.

The square root of 123999474 is about 11135.5051075378. The cubic root of 123999474 is about 498.6623901240.

The spelling of 123999474 in words is "one hundred twenty-three million, nine hundred ninety-nine thousand, four hundred seventy-four".