245729573 has 2 divisors, whose sum is σ = 245729574. Its totient is φ = 245729572.

The previous prime is 245729569. The next prime is 245729581. The reversal of 245729573 is 375927542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 241895809 + 3833764 = 15553^2 + 1958^2 .

It is a cyclic number.

It is not a de Polignac number, because 245729573 - 2² = 245729569 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245729773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122864786 + 122864787.

It is an arithmetic number, because the mean of its divisors is an integer number (122864787).

Almost surely, 2^245729573 is an apocalyptic number.

It is an amenable number.

245729573 is a deficient number, since it is larger than the sum of its proper divisors (1).

245729573 is an equidigital number, since it uses as much as digits as its factorization.

245729573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 44.

The square root of 245729573 is about 15675.7638729345. The cubic root of 245729573 is about 626.3529713296.

The spelling of 245729573 in words is "two hundred forty-five million, seven hundred twenty-nine thousand, five hundred seventy-three".