610616549 has 2 divisors, whose sum is σ = 610616550. Its totient is φ = 610616548.

The previous prime is 610616533. The next prime is 610616561. The reversal of 610616549 is 945616016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 384865924 + 225750625 = 19618^2 + 15025^2 .

It is a cyclic number.

It is not a de Polignac number, because 610616549 - 2⁴ = 610616533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (610616519) 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, 305308274 + 305308275.

It is an arithmetic number, because the mean of its divisors is an integer number (305308275).

Almost surely, 2^610616549 is an apocalyptic number.

It is an amenable number.

610616549 is a deficient number, since it is larger than the sum of its proper divisors (1).

610616549 is an equidigital number, since it uses as much as digits as its factorization.

610616549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 610616549 is about 24710.6565877963. The cubic root of 610616549 is about 848.3782452317.

The spelling of 610616549 in words is "six hundred ten million, six hundred sixteen thousand, five hundred forty-nine".