105552189 has 6 divisors (see below), whose sum is σ = 152464286. Its totient is φ = 70368120.

The previous prime is 105552169. The next prime is 105552197. The reversal of 105552189 is 981255501.

It is a happy number.

105552189 is a `hidden beast` number, since 1 + 0 + 55 + 521 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101002500 + 4549689 = 10050^2 + 2133^2 .

It is a de Polignac number, because none of the positive numbers 2^k-105552189 is a prime.

It is a super-2 number, since 2×105552189² = 22282529205383442, 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 (105552169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5864002 + ... + 5864019.

Almost surely, 2^105552189 is an apocalyptic number.

It is an amenable number.

105552189 is a deficient number, since it is larger than the sum of its proper divisors (46912097).

105552189 is a wasteful number, since it uses less digits than its factorization.

105552189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11728027 (or 11728024 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 36.

The square root of 105552189 is about 10273.8594987473. The cubic root of 105552189 is about 472.5949553010.

The spelling of 105552189 in words is "one hundred five million, five hundred fifty-two thousand, one hundred eighty-nine".