61601303 has 2 divisors, whose sum is σ = 61601304. Its totient is φ = 61601302.

The previous prime is 61601279. The next prime is 61601347. The reversal of 61601303 is 30310616.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61601303 - 2²⁰ = 60552727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61601003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800651 + 30800652.

It is an arithmetic number, because the mean of its divisors is an integer number (30800652).

Almost surely, 2^61601303 is an apocalyptic number.

61601303 is a deficient number, since it is larger than the sum of its proper divisors (1).

61601303 is an equidigital number, since it uses as much as digits as its factorization.

61601303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 61601303 is about 7848.6497564868. The cubic root of 61601303 is about 394.9389490647.

Adding to 61601303 its reverse (30310616), we get a palindrome (91911919).

The spelling of 61601303 in words is "sixty-one million, six hundred one thousand, three hundred three".