61161679 has 2 divisors, whose sum is σ = 61161680. Its totient is φ = 61161678.

The previous prime is 61161671. The next prime is 61161689. The reversal of 61161679 is 97616116.

61161679 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 is a cyclic number.

It is not a de Polignac number, because 61161679 - 2³ = 61161671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61161671) 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, 30580839 + 30580840.

It is an arithmetic number, because the mean of its divisors is an integer number (30580840).

Almost surely, 2^61161679 is an apocalyptic number.

61161679 is a deficient number, since it is larger than the sum of its proper divisors (1).

61161679 is an equidigital number, since it uses as much as digits as its factorization.

61161679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 37.

The square root of 61161679 is about 7820.5932639410. The cubic root of 61161679 is about 393.9971977950.

The spelling of 61161679 in words is "sixty-one million, one hundred sixty-one thousand, six hundred seventy-nine".