105861723 has 16 divisors (see below), whose sum is σ = 156888576. Its totient is φ = 62947040.

The previous prime is 105861697. The next prime is 105861727. The reversal of 105861723 is 327168501.

It is not a de Polignac number, because 105861723 - 2²⁴ = 89084507 is a prime.

It is a super-2 number, since 2×105861723² = 22413408793057458, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (105861727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28515 + ... + 32012.

It is an arithmetic number, because the mean of its divisors is an integer number (9805536).

Almost surely, 2^105861723 is an apocalyptic number.

105861723 is a deficient number, since it is larger than the sum of its proper divisors (51026853).

105861723 is a wasteful number, since it uses less digits than its factorization.

105861723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60594.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 105861723 is about 10288.9126247626. The cubic root of 105861723 is about 473.0564693222.

The spelling of 105861723 in words is "one hundred five million, eight hundred sixty-one thousand, seven hundred twenty-three".