2125164623 has 2 divisors, whose sum is σ = 2125164624. Its totient is φ = 2125164622.

The previous prime is 2125164617. The next prime is 2125164667. The reversal of 2125164623 is 3264615212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2125164623 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2125164623.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125164673) 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 as a sum of consecutive naturals, namely, 1062582311 + 1062582312.

It is an arithmetic number, because the mean of its divisors is an integer number (1062582312).

Almost surely, 2^2125164623 is an apocalyptic number.

2125164623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125164623 is an equidigital number, since it uses as much as digits as its factorization.

2125164623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 32.

The square root of 2125164623 is about 46099.5078390214. The cubic root of 2125164623 is about 1285.6739938514.

Adding to 2125164623 its reverse (3264615212), we get a palindrome (5389779835).

The spelling of 2125164623 in words is "two billion, one hundred twenty-five million, one hundred sixty-four thousand, six hundred twenty-three".