2143133245 has 12 divisors (see below), whose sum is σ = 2826811260. Its totient is φ = 1558641920.

The previous prime is 2143133231. The next prime is 2143133269. The reversal of 2143133245 is 5423313412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 716258169 + 1426875076 = 26763^2 + 37774^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2143133245 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1770580 + ... + 1771789.

It is an arithmetic number, because the mean of its divisors is an integer number (235567605).

Almost surely, 2^2143133245 is an apocalyptic number.

It is an amenable number.

2143133245 is a deficient number, since it is larger than the sum of its proper divisors (683678015).

2143133245 is a wasteful number, since it uses less digits than its factorization.

2143133245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3542396 (or 3542385 counting only the distinct ones).

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

The square root of 2143133245 is about 46293.9871365602. The cubic root of 2143133245 is about 1289.2873585225.

Adding to 2143133245 its reverse (5423313412), we get a palindrome (7566446657).

The spelling of 2143133245 in words is "two billion, one hundred forty-three million, one hundred thirty-three thousand, two hundred forty-five".