106639123 has 2 divisors, whose sum is σ = 106639124. Its totient is φ = 106639122.

The previous prime is 106639121. The next prime is 106639157. The reversal of 106639123 is 321936601.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 106639123 - 2¹ = 106639121 is a prime.

It is a super-2 number, since 2×106639123² = 22743805108418258, which contains 22 as substring.

Together with 106639121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (106639121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53319561 + 53319562.

It is an arithmetic number, because the mean of its divisors is an integer number (53319562).

Almost surely, 2^106639123 is an apocalyptic number.

106639123 is a deficient number, since it is larger than the sum of its proper divisors (1).

106639123 is an equidigital number, since it uses as much as digits as its factorization.

106639123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 106639123 is about 10326.6220517650. The cubic root of 106639123 is about 474.2116162998.

The spelling of 106639123 in words is "one hundred six million, six hundred thirty-nine thousand, one hundred twenty-three".