105681271 has 4 divisors (see below), whose sum is σ = 105743512. Its totient is φ = 105619032.

The previous prime is 105681269. The next prime is 105681319. The reversal of 105681271 is 172186501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105681271 - 2¹ = 105681269 is a prime.

It is a super-2 number, since 2×105681271² = 22337062080350882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105681071) 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, 28500 + ... + 31993.

It is an arithmetic number, because the mean of its divisors is an integer number (26435878).

Almost surely, 2^105681271 is an apocalyptic number.

105681271 is a deficient number, since it is larger than the sum of its proper divisors (62241).

105681271 is an equidigital number, since it uses as much as digits as its factorization.

105681271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62240.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 105681271 is about 10280.1396391294. The cubic root of 105681271 is about 472.7875256051.

The spelling of 105681271 in words is "one hundred five million, six hundred eighty-one thousand, two hundred seventy-one".