12002142 has 16 divisors (see below), whose sum is σ = 24045840. Its totient is φ = 3993792.

The previous prime is 12002093. The next prime is 12002147. The reversal of 12002142 is 24120021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3034 + ... + 5762.

It is an arithmetic number, because the mean of its divisors is an integer number (1502865).

Almost surely, 2^12002142 is an apocalyptic number.

12002142 is an abundant number, since it is smaller than the sum of its proper divisors (12043698).

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

12002142 is a wasteful number, since it uses less digits than its factorization.

12002142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3467.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 12002142 is about 3464.4107724114. The cubic root of 12002142 is about 228.9564697997.

Adding to 12002142 its reverse (24120021), we get a palindrome (36122163).

The spelling of 12002142 in words is "twelve million, two thousand, one hundred forty-two".