12144260140 has 24 divisors (see below), whose sum is σ = 25593074640. Its totient is φ = 4840536768.

The previous prime is 12144260123. The next prime is 12144260201. The reversal of 12144260140 is 4106244121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067155 + ... + 1078474.

It is an arithmetic number, because the mean of its divisors is an integer number (1066378110).

Almost surely, 2^12144260140 is an apocalyptic number.

12144260140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12144260140 is an abundant number, since it is smaller than the sum of its proper divisors (13448814500).

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

12144260140 is a wasteful number, since it uses less digits than its factorization.

12144260140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145921 (or 2145919 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 12144260140 in words is "twelve billion, one hundred forty-four million, two hundred sixty thousand, one hundred forty".