20119873 has 2 divisors, whose sum is σ = 20119874. Its totient is φ = 20119872.

The previous prime is 20119867. The next prime is 20119877. The reversal of 20119873 is 37891102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17833729 + 2286144 = 4223^2 + 1512^2 .

It is a cyclic number.

It is not a de Polignac number, because 20119873 - 2¹³ = 20111681 is a prime.

It is a super-2 number, since 2×20119873² = 809618579072258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20119877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10059936 + 10059937.

It is an arithmetic number, because the mean of its divisors is an integer number (10059937).

Almost surely, 2^20119873 is an apocalyptic number.

It is an amenable number.

20119873 is a deficient number, since it is larger than the sum of its proper divisors (1).

20119873 is an equidigital number, since it uses as much as digits as its factorization.

20119873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 20119873 is about 4485.5181417535. The cubic root of 20119873 is about 271.9829907544.

The spelling of 20119873 in words is "twenty million, one hundred nineteen thousand, eight hundred seventy-three".