105109471 has 4 divisors (see below), whose sum is σ = 109679472. Its totient is φ = 100539472.

The previous prime is 105109447. The next prime is 105109481. The reversal of 105109471 is 174901501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174901501 = 83 ⋅2107247.

It is a cyclic number.

It is not a de Polignac number, because 105109471 - 2¹⁹ = 104585183 is a prime.

It is a super-3 number, since 3×105109471³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105109481) 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, 2284966 + ... + 2285011.

It is an arithmetic number, because the mean of its divisors is an integer number (27419868).

Almost surely, 2^105109471 is an apocalyptic number.

105109471 is a deficient number, since it is larger than the sum of its proper divisors (4570001).

105109471 is an equidigital number, since it uses as much as digits as its factorization.

105109471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570000.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 105109471 is about 10252.2910122567. The cubic root of 105109471 is about 471.9332936828.

The spelling of 105109471 in words is "one hundred five million, one hundred nine thousand, four hundred seventy-one".