2043631573 has 2 divisors, whose sum is σ = 2043631574. Its totient is φ = 2043631572.

The previous prime is 2043631531. The next prime is 2043631607. The reversal of 2043631573 is 3751363402.

It is an a-pointer prime, because the next prime (2043631607) can be obtained adding 2043631573 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1771315569 + 272316004 = 42087^2 + 16502^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043631573 - 2⁹ = 2043631061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043641573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021815786 + 1021815787.

It is an arithmetic number, because the mean of its divisors is an integer number (1021815787).

Almost surely, 2^2043631573 is an apocalyptic number.

It is an amenable number.

2043631573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043631573 is an equidigital number, since it uses as much as digits as its factorization.

2043631573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 34.

The square root of 2043631573 is about 45206.5434754749. The cubic root of 2043631573 is about 1269.0172762223.

Adding to 2043631573 its reverse (3751363402), we get a palindrome (5794994975).

It can be divided in two parts, 2043 and 631573, that added together give a square (633616 = 796²).

The spelling of 2043631573 in words is "two billion, forty-three million, six hundred thirty-one thousand, five hundred seventy-three".