105989211 has 12 divisors (see below), whose sum is σ = 155193688. Its totient is φ = 69691104.

The previous prime is 105989209. The next prime is 105989227. The reversal of 105989211 is 112989501.

It is not a de Polignac number, because 105989211 - 2¹ = 105989209 is a prime.

It is a super-2 number, since 2×105989211² = 22467425696805042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105989291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 80005 + ... + 81318.

Almost surely, 2^105989211 is an apocalyptic number.

105989211 is a deficient number, since it is larger than the sum of its proper divisors (49204477).

105989211 is a wasteful number, since it uses less digits than its factorization.

105989211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161402 (or 161399 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 105989211 is about 10295.1061674953. The cubic root of 105989211 is about 473.2462918813.

The spelling of 105989211 in words is "one hundred five million, nine hundred eighty-nine thousand, two hundred eleven".