12142984 has 24 divisors (see below), whose sum is σ = 26486190. Its totient is φ = 5203968.

The previous prime is 12142969. The next prime is 12142997. The reversal of 12142984 is 48924121.

It can be written as a sum of positive squares in only one way, i.e., 6140484 + 6002500 = 2478^2 + 2450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15097 + ... + 15880.

Almost surely, 2^12142984 is an apocalyptic number.

12142984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12142984 is an abundant number, since it is smaller than the sum of its proper divisors (14343206).

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

12142984 is a wasteful number, since it uses less digits than its factorization.

12142984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30997 (or 30986 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 12142984 is about 3484.6784643637. The cubic root of 12142984 is about 229.8485707701.

The spelling of 12142984 in words is "twelve million, one hundred forty-two thousand, nine hundred eighty-four".