2143265903 has 4 divisors (see below), whose sum is σ = 2143383528. Its totient is φ = 2143148280.

The previous prime is 2143265869. The next prime is 2143265933. The reversal of 2143265903 is 3095623412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2143265903 - 2²⁴ = 2126488687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143265933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25001 + ... + 70082.

It is an arithmetic number, because the mean of its divisors is an integer number (535845882).

Almost surely, 2^2143265903 is an apocalyptic number.

2143265903 is a deficient number, since it is larger than the sum of its proper divisors (117625).

2143265903 is an equidigital number, since it uses as much as digits as its factorization.

2143265903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117624.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 2143265903 is about 46295.4198922528. The cubic root of 2143265903 is about 1289.3139598789.

The spelling of 2143265903 in words is "two billion, one hundred forty-three million, two hundred sixty-five thousand, nine hundred three".