105661027 has 2 divisors, whose sum is σ = 105661028. Its totient is φ = 105661026.

The previous prime is 105660979. The next prime is 105661037. The reversal of 105661027 is 720166501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105661027 is a prime.

It is a super-2 number, since 2×105661027² = 22328505253389458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105660986 and 105661004.

It is not a weakly prime, because it can be changed into another prime (105661037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52830513 + 52830514.

It is an arithmetic number, because the mean of its divisors is an integer number (52830514).

Almost surely, 2^105661027 is an apocalyptic number.

105661027 is a deficient number, since it is larger than the sum of its proper divisors (1).

105661027 is an equidigital number, since it uses as much as digits as its factorization.

105661027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 105661027 is about 10279.1549749967. The cubic root of 105661027 is about 472.7573350716.

The spelling of 105661027 in words is "one hundred five million, six hundred sixty-one thousand, twenty-seven".