61166123 has 2 divisors, whose sum is σ = 61166124. Its totient is φ = 61166122.

The previous prime is 61166059. The next prime is 61166197. The reversal of 61166123 is 32166116.

61166123 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 61166123 - 2⁶ = 61166059 is a prime.

It is a super-2 number, since 2×61166123² = 7482589205702258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 61166092 and 61166101.

It is not a weakly prime, because it can be changed into another prime (61166723) 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, 30583061 + 30583062.

It is an arithmetic number, because the mean of its divisors is an integer number (30583062).

Almost surely, 2^61166123 is an apocalyptic number.

61166123 is a deficient number, since it is larger than the sum of its proper divisors (1).

61166123 is an equidigital number, since it uses as much as digits as its factorization.

61166123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

The square root of 61166123 is about 7820.8773804478. The cubic root of 61166123 is about 394.0067401597.

The spelling of 61166123 in words is "sixty-one million, one hundred sixty-six thousand, one hundred twenty-three".