61306741 has 2 divisors, whose sum is σ = 61306742. Its totient is φ = 61306740.

The previous prime is 61306649. The next prime is 61306757. The reversal of 61306741 is 14760316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40640625 + 20666116 = 6375^2 + 4546^2 .

It is a cyclic number.

It is not a de Polignac number, because 61306741 - 2²³ = 52918133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61306771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30653370 + 30653371.

It is an arithmetic number, because the mean of its divisors is an integer number (30653371).

Almost surely, 2^61306741 is an apocalyptic number.

It is an amenable number.

61306741 is a deficient number, since it is larger than the sum of its proper divisors (1).

61306741 is an equidigital number, since it uses as much as digits as its factorization.

61306741 is an evil number, because the sum of its binary digits is even.

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

The square root of 61306741 is about 7829.8621316087. The cubic root of 61306741 is about 394.3084433130.

The spelling of 61306741 in words is "sixty-one million, three hundred six thousand, seven hundred forty-one".