2143331245 has 32 divisors (see below), whose sum is σ = 2937876480. Its totient is φ = 1485887040.

The previous prime is 2143331237. The next prime is 2143331249. The reversal of 2143331245 is 5421333412.

It is a happy number.

It is not a de Polignac number, because 2143331245 - 2³ = 2143331237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143331249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 385596 + ... + 391114.

It is an arithmetic number, because the mean of its divisors is an integer number (91808640).

Almost surely, 2^2143331245 is an apocalyptic number.

It is an amenable number.

2143331245 is a deficient number, since it is larger than the sum of its proper divisors (794545235).

2143331245 is a wasteful number, since it uses less digits than its factorization.

2143331245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5865.

The product of its digits is 8640, while the sum is 28.

The square root of 2143331245 is about 46296.1255938334. The cubic root of 2143331245 is about 1289.3270622346.

Adding to 2143331245 its reverse (5421333412), we get a palindrome (7564664657).

The spelling of 2143331245 in words is "two billion, one hundred forty-three million, three hundred thirty-one thousand, two hundred forty-five".