2143238156 has 24 divisors (see below), whose sum is σ = 3887730000. Its totient is φ = 1032605504.

The previous prime is 2143238147. The next prime is 2143238177. The reversal of 2143238156 is 6518323412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40895 + ... + 77193.

It is an arithmetic number, because the mean of its divisors is an integer number (161988750).

Almost surely, 2^2143238156 is an apocalyptic number.

It is an amenable number.

2143238156 is a deficient number, since it is larger than the sum of its proper divisors (1744491844).

2143238156 is a wasteful number, since it uses less digits than its factorization.

2143238156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36841 (or 36839 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 2143238156 is about 46295.1202180100. The cubic root of 2143238156 is about 1289.3083959793.

The spelling of 2143238156 in words is "two billion, one hundred forty-three million, two hundred thirty-eight thousand, one hundred fifty-six".