20008151 has 2 divisors, whose sum is σ = 20008152. Its totient is φ = 20008150.

The previous prime is 20008141. The next prime is 20008169. The reversal of 20008151 is 15180002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20008151 is a prime.

It is a super-2 number, since 2×20008151² = 800652212877602, 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 (20008141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10004075 + 10004076.

It is an arithmetic number, because the mean of its divisors is an integer number (10004076).

Almost surely, 2^20008151 is an apocalyptic number.

20008151 is a deficient number, since it is larger than the sum of its proper divisors (1).

20008151 is an equidigital number, since it uses as much as digits as its factorization.

20008151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 20008151 is about 4473.0471716717. The cubic root of 20008151 is about 271.4786320144.

Adding to 20008151 its reverse (15180002), we get a palindrome (35188153).

The spelling of 20008151 in words is "twenty million, eight thousand, one hundred fifty-one".