105989213 has 8 divisors (see below), whose sum is σ = 116402400. Its totient is φ = 95705680.

The previous prime is 105989209. The next prime is 105989227. The reversal of 105989213 is 312989501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105989213 - 2² = 105989209 is a prime.

It is a super-2 number, since 2×105989213² = 22467426544718738, 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 (105989413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30695 + ... + 33972.

It is an arithmetic number, because the mean of its divisors is an integer number (14550300).

Almost surely, 2^105989213 is an apocalyptic number.

It is an amenable number.

105989213 is a deficient number, since it is larger than the sum of its proper divisors (10413187).

105989213 is a wasteful number, since it uses less digits than its factorization.

105989213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64827.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 105989213 is about 10295.1062646288. The cubic root of 105989213 is about 473.2462948580.

The spelling of 105989213 in words is "one hundred five million, nine hundred eighty-nine thousand, two hundred thirteen".