105184981 has 4 divisors (see below), whose sum is σ = 114747264. Its totient is φ = 95622700.

The previous prime is 105184973. The next prime is 105184991. The reversal of 105184981 is 189481501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105184981 - 2³ = 105184973 is a prime.

It is a super-2 number, since 2×105184981² = 22127760455940722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105184981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105184921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4781125 + ... + 4781146.

It is an arithmetic number, because the mean of its divisors is an integer number (28686816).

Almost surely, 2^105184981 is an apocalyptic number.

105184981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105184981 is a deficient number, since it is larger than the sum of its proper divisors (9562283).

105184981 is an equidigital number, since it uses as much as digits as its factorization.

105184981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562282.

The product of its (nonzero) digits is 11520, while the sum is 37.

The square root of 105184981 is about 10255.9729426320. The cubic root of 105184981 is about 472.0462779603.

The spelling of 105184981 in words is "one hundred five million, one hundred eighty-four thousand, nine hundred eighty-one".