2145344313 has 12 divisors (see below), whose sum is σ = 3327473040. Its totient is φ = 1225910952.

The previous prime is 2145344287. The next prime is 2145344317. The reversal of 2145344313 is 3134435412.

It is not a de Polignac number, because 2145344313 - 2⁹ = 2145343801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145344317) 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 11 ways as a sum of consecutive naturals, for example, 7296943 + ... + 7297236.

It is an arithmetic number, because the mean of its divisors is an integer number (277289420).

Almost surely, 2^2145344313 is an apocalyptic number.

It is an amenable number.

2145344313 is a deficient number, since it is larger than the sum of its proper divisors (1182128727).

2145344313 is a wasteful number, since it uses less digits than its factorization.

2145344313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14594196 (or 14594189 counting only the distinct ones).

The product of its digits is 17280, while the sum is 30.

The square root of 2145344313 is about 46317.8617058258. The cubic root of 2145344313 is about 1289.7305915372.

Adding to 2145344313 its reverse (3134435412), we get a palindrome (5279779725).

The spelling of 2145344313 in words is "two billion, one hundred forty-five million, three hundred forty-four thousand, three hundred thirteen".