61045573 has 2 divisors, whose sum is σ = 61045574. Its totient is φ = 61045572.

The previous prime is 61045571. The next prime is 61045577. The reversal of 61045573 is 37554016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54730404 + 6315169 = 7398^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 61045573 - 2¹ = 61045571 is a prime.

Together with 61045571, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61045571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30522786 + 30522787.

It is an arithmetic number, because the mean of its divisors is an integer number (30522787).

Almost surely, 2^61045573 is an apocalyptic number.

It is an amenable number.

61045573 is a deficient number, since it is larger than the sum of its proper divisors (1).

61045573 is an equidigital number, since it uses as much as digits as its factorization.

61045573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The square root of 61045573 is about 7813.1666435575. The cubic root of 61045573 is about 393.7477255936.

Adding to 61045573 its reverse (37554016), we get a palindrome (98599589).

The spelling of 61045573 in words is "sixty-one million, forty-five thousand, five hundred seventy-three".