140171105 has 4 divisors (see below), whose sum is σ = 168205332. Its totient is φ = 112136880.

The previous prime is 140171089. The next prime is 140171117. The reversal of 140171105 is 501171041.

It is a happy number.

140171105 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 69089344 + 71081761 = 8312^2 + 8431^2 .

It is not a de Polignac number, because 140171105 - 2⁴ = 140171089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14017106 + ... + 14017115.

It is an arithmetic number, because the mean of its divisors is an integer number (42051333).

Almost surely, 2^140171105 is an apocalyptic number.

It is an amenable number.

140171105 is a deficient number, since it is larger than the sum of its proper divisors (28034227).

140171105 is an equidigital number, since it uses as much as digits as its factorization.

140171105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28034226.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 140171105 is about 11839.3878642437. The cubic root of 140171105 is about 519.4608625651.

The spelling of 140171105 in words is "one hundred forty million, one hundred seventy-one thousand, one hundred five".