2143447136 has 24 divisors (see below), whose sum is σ = 4356039744. Its totient is φ = 1037151360.

The previous prime is 2143447123. The next prime is 2143447153. The reversal of 2143447136 is 6317443412.

It is a super-3 number, since 3×2143447136³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2143447096 and 2143447105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1079375 + ... + 1081358.

It is an arithmetic number, because the mean of its divisors is an integer number (181501656).

Almost surely, 2^2143447136 is an apocalyptic number.

It is an amenable number.

2143447136 is an abundant number, since it is smaller than the sum of its proper divisors (2212592608).

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

2143447136 is a wasteful number, since it uses less digits than its factorization.

2143447136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160774 (or 2160766 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 2143447136 is about 46297.3772043298. The cubic root of 2143447136 is about 1289.3503000036.

The spelling of 2143447136 in words is "two billion, one hundred forty-three million, four hundred forty-seven thousand, one hundred thirty-six".