20410143 has 32 divisors (see below), whose sum is σ = 30433536. Its totient is φ = 12089088.

The previous prime is 20410139. The next prime is 20410163. The reversal of 20410143 is 34101402.

It is not a de Polignac number, because 20410143 - 2² = 20410139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 190696 + ... + 190802.

It is an arithmetic number, because the mean of its divisors is an integer number (951048).

Almost surely, 2^20410143 is an apocalyptic number.

20410143 is a deficient number, since it is larger than the sum of its proper divisors (10023393).

20410143 is a wasteful number, since it uses less digits than its factorization.

20410143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20410143 is about 4517.7586256904. The cubic root of 20410143 is about 273.2847195253.

Adding to 20410143 its reverse (34101402), we get a palindrome (54511545).

The spelling of 20410143 in words is "twenty million, four hundred ten thousand, one hundred forty-three".