105989149 has 8 divisors (see below), whose sum is σ = 121635008. Its totient is φ = 90469440.

The previous prime is 105989123. The next prime is 105989159. The reversal of 105989149 is 941989501.

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

It is a cyclic number.

It is not a de Polignac number, because 105989149 - 2⁷ = 105989021 is a prime.

It is a super-2 number, since 2×105989149² = 22467399411488402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105989099 and 105989108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105989159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29727 + ... + 33100.

It is an arithmetic number, because the mean of its divisors is an integer number (15204376).

Almost surely, 2^105989149 is an apocalyptic number.

It is an amenable number.

105989149 is a deficient number, since it is larger than the sum of its proper divisors (15645859).

105989149 is an equidigital number, since it uses as much as digits as its factorization.

105989149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63075.

The product of its (nonzero) digits is 116640, while the sum is 46.

The square root of 105989149 is about 10295.1031563555. The cubic root of 105989149 is about 473.2461996038.

The spelling of 105989149 in words is "one hundred five million, nine hundred eighty-nine thousand, one hundred forty-nine".