106668539 has 2 divisors, whose sum is σ = 106668540. Its totient is φ = 106668538.

The previous prime is 106668517. The next prime is 106668559. The reversal of 106668539 is 935866601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 106668539 - 2²⁴ = 89891323 is a prime.

It is a super-2 number, since 2×106668539² = 22756354424789042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106668539.

It is not a weakly prime, because it can be changed into another prime (106668559) 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, 53334269 + 53334270.

It is an arithmetic number, because the mean of its divisors is an integer number (53334270).

Almost surely, 2^106668539 is an apocalyptic number.

106668539 is a deficient number, since it is larger than the sum of its proper divisors (1).

106668539 is an equidigital number, since it uses as much as digits as its factorization.

106668539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 106668539 is about 10328.0462334364. The cubic root of 106668539 is about 474.2552154532.

The spelling of 106668539 in words is "one hundred six million, six hundred sixty-eight thousand, five hundred thirty-nine".