105813731 has 8 divisors (see below), whose sum is σ = 111223584. Its totient is φ = 100471360.

The previous prime is 105813713. The next prime is 105813737. The reversal of 105813731 is 137318501.

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

It is a de Polignac number, because none of the positive numbers 2^k-105813731 is a prime.

It is a super-2 number, since 2×105813731² = 22393091336280722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105813694 and 105813703.

It is not an unprimeable number, because it can be changed into a prime (105813737) 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, 13640 + ... + 19941.

It is an arithmetic number, because the mean of its divisors is an integer number (13902948).

Almost surely, 2^105813731 is an apocalyptic number.

105813731 is a deficient number, since it is larger than the sum of its proper divisors (5409853).

105813731 is a wasteful number, since it uses less digits than its factorization.

105813731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33741.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 105813731 is about 10286.5801411353. The cubic root of 105813731 is about 472.9849724139.

The spelling of 105813731 in words is "one hundred five million, eight hundred thirteen thousand, seven hundred thirty-one".