20704141 has 2 divisors, whose sum is σ = 20704142. Its totient is φ = 20704140.

The previous prime is 20704093. The next prime is 20704171. The reversal of 20704141 is 14140702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20666116 + 38025 = 4546^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 20704141 - 2¹³ = 20695949 is a prime.

It is a super-2 number, since 2×20704141² = 857322909095762, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20704171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10352070 + 10352071.

It is an arithmetic number, because the mean of its divisors is an integer number (10352071).

Almost surely, 2^20704141 is an apocalyptic number.

It is an amenable number.

20704141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20704141 is an equidigital number, since it uses as much as digits as its factorization.

20704141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 20704141 is about 4550.1803260970. The cubic root of 20704141 is about 274.5906460509.

Adding to 20704141 its reverse (14140702), we get a palindrome (34844843).

It can be divided in two parts, 2070 and 4141, that multiplied together give a triangular number (8571870 = T₄₁₄₀).

The spelling of 20704141 in words is "twenty million, seven hundred four thousand, one hundred forty-one".