123760140 has 96 divisors (see below), whose sum is σ = 405748224. Its totient is φ = 27594240.

The previous prime is 123760121. The next prime is 123760157. The reversal of 123760140 is 41067321.

It is a self number, because there is not a number n which added to its sum of digits gives 123760140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13627 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (4226544).

Almost surely, 2^123760140 is an apocalyptic number.

123760140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123760140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202874112).

123760140 is an abundant number, since it is smaller than the sum of its proper divisors (281988084).

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

123760140 is a wasteful number, since it uses less digits than its factorization.

123760140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247 (or 7245 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 123760140 is about 11124.7534804147. The cubic root of 123760140 is about 498.3413572257.

The spelling of 123760140 in words is "one hundred twenty-three million, seven hundred sixty thousand, one hundred forty".