123680258 has 16 divisors (see below), whose sum is σ = 202776000. Its totient is φ = 56230416.

The previous prime is 123680251. The next prime is 123680279. The reversal of 123680258 is 852086321.

It is not an unprimeable number, because it can be changed into a prime (123680251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33758 + ... + 37241.

It is an arithmetic number, because the mean of its divisors is an integer number (12673500).

Almost surely, 2^123680258 is an apocalyptic number.

123680258 is a deficient number, since it is larger than the sum of its proper divisors (79095742).

123680258 is a wasteful number, since it uses less digits than its factorization.

123680258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71081.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 123680258 is about 11121.1626190790. The cubic root of 123680258 is about 498.2341146400.

The spelling of 123680258 in words is "one hundred twenty-three million, six hundred eighty thousand, two hundred fifty-eight".