106645589 has 4 divisors (see below), whose sum is σ = 106686240. Its totient is φ = 106604940.

The previous prime is 106645579. The next prime is 106645603. The reversal of 106645589 is 985546601.

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: 985546601 = 13 ⋅75811277.

It is a cyclic number.

It is not a de Polignac number, because 106645589 - 2¹⁶ = 106580053 is a prime.

It is a super-2 number, since 2×106645589² = 22746563306313842, 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 (106645579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16097 + ... + 21734.

It is an arithmetic number, because the mean of its divisors is an integer number (26671560).

Almost surely, 2^106645589 is an apocalyptic number.

It is an amenable number.

106645589 is a deficient number, since it is larger than the sum of its proper divisors (40651).

106645589 is an equidigital number, since it uses as much as digits as its factorization.

106645589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40650.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 106645589 is about 10326.9351213223. The cubic root of 106645589 is about 474.2212006194.

The spelling of 106645589 in words is "one hundred six million, six hundred forty-five thousand, five hundred eighty-nine".