105047943 has 32 divisors (see below), whose sum is σ = 188063232. Its totient is φ = 50371200.

The previous prime is 105047939. The next prime is 105047963. The reversal of 105047943 is 349740501.

It is not a de Polignac number, because 105047943 - 2² = 105047939 is a prime.

It is a super-2 number, since 2×105047943² = 22070140657062498, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105047963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14488 + ... + 20493.

It is an arithmetic number, because the mean of its divisors is an integer number (5876976).

Almost surely, 2^105047943 is an apocalyptic number.

105047943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

105047943 is a deficient number, since it is larger than the sum of its proper divisors (83015289).

105047943 is a wasteful number, since it uses less digits than its factorization.

105047943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35015.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 105047943 is about 10249.2898778403. The cubic root of 105047943 is about 471.8411904083.

The spelling of 105047943 in words is "one hundred five million, forty-seven thousand, nine hundred forty-three".