61306099 has 2 divisors, whose sum is σ = 61306100. Its totient is φ = 61306098.

The previous prime is 61306079. The next prime is 61306121. The reversal of 61306099 is 99060316.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61306099 is a prime.

It is not a weakly prime, because it can be changed into another prime (61306009) 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, 30653049 + 30653050.

It is an arithmetic number, because the mean of its divisors is an integer number (30653050).

Almost surely, 2^61306099 is an apocalyptic number.

61306099 is a deficient number, since it is larger than the sum of its proper divisors (1).

61306099 is an equidigital number, since it uses as much as digits as its factorization.

61306099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 61306099 is about 7829.8211346109. The cubic root of 61306099 is about 394.3070669178.

The spelling of 61306099 in words is "sixty-one million, three hundred six thousand, ninety-nine".