7143912 has 48 divisors (see below), whose sum is σ = 19471140. Its totient is φ = 2366208.

The previous prime is 7143911. The next prime is 7143931. The reversal of 7143912 is 2193417.

It can be written as a sum of positive squares in 2 ways, for example, as 4691556 + 2452356 = 2166^2 + 1566^2 .

It is not an unprimeable number, because it can be changed into a prime (7143911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22378 + ... + 22694.

Almost surely, 2^7143912 is an apocalyptic number.

7143912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7143912 is an abundant number, since it is smaller than the sum of its proper divisors (12327228).

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

7143912 is a wasteful number, since it uses less digits than its factorization.

7143912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 635 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 7143912 is about 2672.8097575398. The cubic root of 7143912 is about 192.5951584398.

The spelling of 7143912 in words is "seven million, one hundred forty-three thousand, nine hundred twelve".