20807141 has 8 divisors (see below), whose sum is σ = 21352320. Its totient is φ = 20264832.

The previous prime is 20807093. The next prime is 20807153. The reversal of 20807141 is 14170802.

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 20807141 - 2⁶ = 20807077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20807191) 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 7 ways as a sum of consecutive naturals, for example, 28580 + ... + 29298.

It is an arithmetic number, because the mean of its divisors is an integer number (2669040).

Almost surely, 2^20807141 is an apocalyptic number.

It is an amenable number.

20807141 is a deficient number, since it is larger than the sum of its proper divisors (545179).

20807141 is an equidigital number, since it uses as much as digits as its factorization.

20807141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1435.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 20807141 is about 4561.4845171282. The cubic root of 20807141 is about 275.0452421433.

Adding to 20807141 its reverse (14170802), we get a palindrome (34977943).

The spelling of 20807141 in words is "twenty million, eight hundred seven thousand, one hundred forty-one".