20141705 has 4 divisors (see below), whose sum is σ = 24170052. Its totient is φ = 16113360.

The previous prime is 20141663. The next prime is 20141707. The reversal of 20141705 is 50714102.

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 9066121 + 11075584 = 3011^2 + 3328^2 .

It is not a de Polignac number, because 20141705 - 2⁸ = 20141449 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (20141707) 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, 2014166 + ... + 2014175.

It is an arithmetic number, because the mean of its divisors is an integer number (6042513).

Almost surely, 2^20141705 is an apocalyptic number.

It is an amenable number.

20141705 is a deficient number, since it is larger than the sum of its proper divisors (4028347).

20141705 is an equidigital number, since it uses as much as digits as its factorization.

20141705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028346.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 20141705 is about 4487.9510915339. The cubic root of 20141705 is about 272.0813311068.

Adding to 20141705 its reverse (50714102), we get a palindrome (70855807).

The spelling of 20141705 in words is "twenty million, one hundred forty-one thousand, seven hundred five".