1143860214 has 96 divisors (see below), whose sum is σ = 2721116160. Its totient is φ = 319552128.

The previous prime is 1143860191. The next prime is 1143860239. The reversal of 1143860214 is 4120683411.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4785907 + ... + 4786145.

It is an arithmetic number, because the mean of its divisors is an integer number (28344960).

Almost surely, 2^1143860214 is an apocalyptic number.

1143860214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143860214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1360558080).

1143860214 is an abundant number, since it is smaller than the sum of its proper divisors (1577255946).

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

1143860214 is a wasteful number, since it uses less digits than its factorization.

1143860214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1143860214 is about 33821.0025575825. The cubic root of 1143860214 is about 1045.8217063678.

The spelling of 1143860214 in words is "one billion, one hundred forty-three million, eight hundred sixty thousand, two hundred fourteen".