12102140 has 24 divisors (see below), whose sum is σ = 26520480. Its totient is φ = 4630208.

The previous prime is 12102133. The next prime is 12102151. The reversal of 12102140 is 4120121.

It is a congruent number.

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, 12695 + ... + 13614.

It is an arithmetic number, because the mean of its divisors is an integer number (1105020).

Almost surely, 2^12102140 is an apocalyptic number.

12102140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12102140 is an abundant number, since it is smaller than the sum of its proper divisors (14418340).

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

12102140 is a wasteful number, since it uses less digits than its factorization.

12102140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26341 (or 26339 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 12102140 is about 3478.8130159582. The cubic root of 12102140 is about 229.5905759627.

Adding to 12102140 its reverse (4120121), we get a palindrome (16222261).

The spelling of 12102140 in words is "twelve million, one hundred two thousand, one hundred forty".