2143345245 has 16 divisors (see below), whose sum is σ = 3430370112. Its totient is φ = 1142778240.

The previous prime is 2143345223. The next prime is 2143345249. The reversal of 2143345245 is 5425433412.

It is not a de Polignac number, because 2143345245 - 2⁶ = 2143345181 is a prime.

It is a super-2 number, since 2×2143345245² = 9187857678528220050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143345249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36009 + ... + 74721.

It is an arithmetic number, because the mean of its divisors is an integer number (214398132).

Almost surely, 2^2143345245 is an apocalyptic number.

It is an amenable number.

2143345245 is a deficient number, since it is larger than the sum of its proper divisors (1287024867).

2143345245 is a wasteful number, since it uses less digits than its factorization.

2143345245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42412.

The product of its digits is 57600, while the sum is 33.

The square root of 2143345245 is about 46296.2767941440. The cubic root of 2143345245 is about 1289.3298694752.

Adding to 2143345245 its reverse (5425433412), we get a palindrome (7568778657).

The spelling of 2143345245 in words is "two billion, one hundred forty-three million, three hundred forty-five thousand, two hundred forty-five".