2145703365 has 192 divisors, whose sum is σ = 4504211712. Its totient is φ = 970444800.

The previous prime is 2145703363. The next prime is 2145703367. The reversal of 2145703365 is 5633075412.

2145703365 is a `hidden beast` number, since 21 + 4 + 570 + 3 + 3 + 65 = 666.

It is an interprime number because it is at equal distance from previous prime (2145703363) and next prime (2145703367).

It is not a de Polignac number, because 2145703365 - 2¹ = 2145703363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145703363) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16379350 + ... + 16379480.

It is an arithmetic number, because the mean of its divisors is an integer number (23459436).

Almost surely, 2^2145703365 is an apocalyptic number.

It is an amenable number.

2145703365 is an abundant number, since it is smaller than the sum of its proper divisors (2358508347).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145703365 is a wasteful number, since it uses less digits than its factorization.

2145703365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 36.

The square root of 2145703365 is about 46321.7374997959. The cubic root of 2145703365 is about 1289.8025387322.

Adding to 2145703365 its reverse (5633075412), we get a palindrome (7778778777).

The spelling of 2145703365 in words is "two billion, one hundred forty-five million, seven hundred three thousand, three hundred sixty-five".