105023681 has 8 divisors (see below), whose sum is σ = 125245824. Its totient is φ = 86106240.

The previous prime is 105023657. The next prime is 105023729. The reversal of 105023681 is 186320501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105023681 is a prime.

It is a super-2 number, since 2×105023681² = 22059947141579522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105023681.

It is not an unprimeable number, because it can be changed into a prime (105023651) 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, 326000 + ... + 326321.

It is an arithmetic number, because the mean of its divisors is an integer number (15655728).

Almost surely, 2^105023681 is an apocalyptic number.

It is an amenable number.

105023681 is a deficient number, since it is larger than the sum of its proper divisors (20222143).

105023681 is an equidigital number, since it uses as much as digits as its factorization.

105023681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652351.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 105023681 is about 10248.1062152966. The cubic root of 105023681 is about 471.8048619407.

The spelling of 105023681 in words is "one hundred five million, twenty-three thousand, six hundred eighty-one".