30245731573 has 2 divisors, whose sum is σ = 30245731574. Its totient is φ = 30245731572.

The previous prime is 30245731559. The next prime is 30245731583. The reversal of 30245731573 is 37513754203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30245731569 + 4 = 173913^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 30245731573 - 2¹³ = 30245723381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30245731583) 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, 15122865786 + 15122865787.

It is an arithmetic number, because the mean of its divisors is an integer number (15122865787).

Almost surely, 2^30245731573 is an apocalyptic number.

It is an amenable number.

30245731573 is a deficient number, since it is larger than the sum of its proper divisors (1).

30245731573 is an equidigital number, since it uses as much as digits as its factorization.

30245731573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 264600, while the sum is 40.

The spelling of 30245731573 in words is "thirty billion, two hundred forty-five million, seven hundred thirty-one thousand, five hundred seventy-three".