61740361 has 2 divisors, whose sum is σ = 61740362. Its totient is φ = 61740360.

The previous prime is 61740359. The next prime is 61740377. The reversal of 61740361 is 16304716.

61740361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 7054336 = 7395^2 + 2656^2 .

It is a cyclic number.

It is not a de Polignac number, because 61740361 - 2¹ = 61740359 is a prime.

Together with 61740359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61740331) 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, 30870180 + 30870181.

It is an arithmetic number, because the mean of its divisors is an integer number (30870181).

Almost surely, 2^61740361 is an apocalyptic number.

It is an amenable number.

61740361 is a deficient number, since it is larger than the sum of its proper divisors (1).

61740361 is an equidigital number, since it uses as much as digits as its factorization.

61740361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 61740361 is about 7857.5034839318. The cubic root of 61740361 is about 395.2359024551.

The spelling of 61740361 in words is "sixty-one million, seven hundred forty thousand, three hundred sixty-one".