2102545573 has 2 divisors, whose sum is σ = 2102545574. Its totient is φ = 2102545572.

The previous prime is 2102545561. The next prime is 2102545589. The reversal of 2102545573 is 3755452012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1403101764 + 699443809 = 37458^2 + 26447^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102545573 - 2⁵ = 2102545541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102545513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051272786 + 1051272787.

It is an arithmetic number, because the mean of its divisors is an integer number (1051272787).

Almost surely, 2^2102545573 is an apocalyptic number.

It is an amenable number.

2102545573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102545573 is an equidigital number, since it uses as much as digits as its factorization.

2102545573 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42000, while the sum is 34.

The square root of 2102545573 is about 45853.5230162307. The cubic root of 2102545573 is about 1281.0963858570.

Adding to 2102545573 its reverse (3755452012), we get a palindrome (5857997585).

The spelling of 2102545573 in words is "two billion, one hundred two million, five hundred forty-five thousand, five hundred seventy-three".