105880981 has 8 divisors (see below), whose sum is σ = 112207680. Its totient is φ = 99565248.

The previous prime is 105880979. The next prime is 105880991. The reversal of 105880981 is 189088501.

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 105880981 - 2¹ = 105880979 is a prime.

It is a super-2 number, since 2×105880981² = 22421564275044722, 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 (105880991) 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, 25600 + ... + 29446.

It is an arithmetic number, because the mean of its divisors is an integer number (14025960).

Almost surely, 2^105880981 is an apocalyptic number.

It is an amenable number.

105880981 is a deficient number, since it is larger than the sum of its proper divisors (6326699).

105880981 is a wasteful number, since it uses less digits than its factorization.

105880981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5483.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 105880981 is about 10289.8484439762. The cubic root of 105880981 is about 473.0851531840.

The spelling of 105880981 in words is "one hundred five million, eight hundred eighty thousand, nine hundred eighty-one".