123486140 has 12 divisors (see below), whose sum is σ = 259320936. Its totient is φ = 49394448.

The previous prime is 123486119. The next prime is 123486151. The reversal of 123486140 is 41684321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3087134 + ... + 3087173.

It is an arithmetic number, because the mean of its divisors is an integer number (21610078).

Almost surely, 2^123486140 is an apocalyptic number.

123486140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123486140 is an abundant number, since it is smaller than the sum of its proper divisors (135834796).

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

123486140 is a wasteful number, since it uses less digits than its factorization.

123486140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6174316 (or 6174314 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 123486140 is about 11112.4317770684. The cubic root of 123486140 is about 497.9733162049.

The spelling of 123486140 in words is "one hundred twenty-three million, four hundred eighty-six thousand, one hundred forty".