106662109 has 4 divisors (see below), whose sum is σ = 111299616. Its totient is φ = 102024604.

The previous prime is 106662107. The next prime is 106662113. The reversal of 106662109 is 901266601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 901266601 = 233 ⋅3868097.

It is a cyclic number.

It is not a de Polignac number, because 106662109 - 2¹ = 106662107 is a prime.

It is a super-2 number, since 2×106662109² = 22753610992655762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106662107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2318719 + ... + 2318764.

It is an arithmetic number, because the mean of its divisors is an integer number (27824904).

Almost surely, 2^106662109 is an apocalyptic number.

It is an amenable number.

106662109 is a deficient number, since it is larger than the sum of its proper divisors (4637507).

106662109 is an equidigital number, since it uses as much as digits as its factorization.

106662109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637506.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 106662109 is about 10327.7349404407. The cubic root of 106662109 is about 474.2456858633.

The spelling of 106662109 in words is "one hundred six million, six hundred sixty-two thousand, one hundred nine".