2164505573 has 2 divisors, whose sum is σ = 2164505574. Its totient is φ = 2164505572.

The previous prime is 2164505527. The next prime is 2164505611. The reversal of 2164505573 is 3755054612.

It is a happy number.

It is an a-pointer prime, because the next prime (2164505611) can be obtained adding 2164505573 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182121924 + 982383649 = 34382^2 + 31343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164505573 - 2¹² = 2164501477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164507573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082252786 + 1082252787.

It is an arithmetic number, because the mean of its divisors is an integer number (1082252787).

Almost surely, 2^2164505573 is an apocalyptic number.

It is an amenable number.

2164505573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164505573 is an equidigital number, since it uses as much as digits as its factorization.

2164505573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 2164505573 is about 46524.2471513511. The cubic root of 2164505573 is about 1293.5589826567.

The spelling of 2164505573 in words is "two billion, one hundred sixty-four million, five hundred five thousand, five hundred seventy-three".