2143615238 has 16 divisors (see below), whose sum is σ = 3411582624. Its totient is φ = 1006680960.

The previous prime is 2143615237. The next prime is 2143615241. The reversal of 2143615238 is 8325163412.

It is a junction number, because it is equal to n+sod(n) for n = 2143615198 and 2143615207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143615237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48173 + ... + 81288.

It is an arithmetic number, because the mean of its divisors is an integer number (213223914).

Almost surely, 2^2143615238 is an apocalyptic number.

2143615238 is a deficient number, since it is larger than the sum of its proper divisors (1267967386).

2143615238 is a wasteful number, since it uses less digits than its factorization.

2143615238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129967.

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

The square root of 2143615238 is about 46299.1926279498. The cubic root of 2143615238 is about 1289.3840053211.

The spelling of 2143615238 in words is "two billion, one hundred forty-three million, six hundred fifteen thousand, two hundred thirty-eight".