106659149 has 4 divisors (see below), whose sum is σ = 107200764. Its totient is φ = 106117536.

The previous prime is 106659143. The next prime is 106659151. The reversal of 106659149 is 941956601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103022500 + 3636649 = 10150^2 + 1907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106659149 is a prime.

It is a super-2 number, since 2×106659149² = 22752348130808402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106659143) 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 in 3 ways as a sum of consecutive naturals, for example, 270512 + ... + 270905.

It is an arithmetic number, because the mean of its divisors is an integer number (26800191).

Almost surely, 2^106659149 is an apocalyptic number.

It is an amenable number.

106659149 is a deficient number, since it is larger than the sum of its proper divisors (541615).

106659149 is an equidigital number, since it uses as much as digits as its factorization.

106659149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541614.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 106659149 is about 10327.5916360011. The cubic root of 106659149 is about 474.2412988627.

The spelling of 106659149 in words is "one hundred six million, six hundred fifty-nine thousand, one hundred forty-nine".