123160140 has 72 divisors (see below), whose sum is σ = 379950480. Its totient is φ = 32283264.

The previous prime is 123160139. The next prime is 123160153. The reversal of 123160140 is 41061321.

It is a happy number.

123160140 is a `hidden beast` number, since 1 + 23 + 1 + 601 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4822 + ... + 16418.

It is an arithmetic number, because the mean of its divisors is an integer number (5277090).

Almost surely, 2^123160140 is an apocalyptic number.

123160140 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 123160140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189975240).

123160140 is an abundant number, since it is smaller than the sum of its proper divisors (256790340).

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

123160140 is a wasteful number, since it uses less digits than its factorization.

123160140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11671 (or 11666 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 123160140 is about 11097.7538267886. The cubic root of 123160140 is about 497.5347180808.

The spelling of 123160140 in words is "one hundred twenty-three million, one hundred sixty thousand, one hundred forty".