20810141 has 8 divisors (see below), whose sum is σ = 22927968. Its totient is φ = 18730000.

The previous prime is 20810129. The next prime is 20810177. The reversal of 20810141 is 14101802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20810141 - 2¹⁸ = 20547997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20810191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8255 + ... + 10476.

It is an arithmetic number, because the mean of its divisors is an integer number (2865996).

Almost surely, 2^20810141 is an apocalyptic number.

It is an amenable number.

20810141 is a deficient number, since it is larger than the sum of its proper divisors (2117827).

20810141 is a wasteful number, since it uses less digits than its factorization.

20810141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18843.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 20810141 is about 4561.8133455897. The cubic root of 20810141 is about 275.0584602987.

Adding to 20810141 its reverse (14101802), we get a palindrome (34911943).

The spelling of 20810141 in words is "twenty million, eight hundred ten thousand, one hundred forty-one".