20313089 has 2 divisors, whose sum is σ = 20313090. Its totient is φ = 20313088.

The previous prime is 20313067. The next prime is 20313119. The reversal of 20313089 is 98031302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13630864 + 6682225 = 3692^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313089 - 2¹² = 20308993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20313389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156544 + 10156545.

It is an arithmetic number, because the mean of its divisors is an integer number (10156545).

Almost surely, 2^20313089 is an apocalyptic number.

It is an amenable number.

20313089 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313089 is an equidigital number, since it uses as much as digits as its factorization.

20313089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20313089 is about 4507.0044375394. The cubic root of 20313089 is about 272.8508579927.

The spelling of 20313089 in words is "twenty million, three hundred thirteen thousand, eighty-nine".