99335281 has 2 divisors, whose sum is σ = 99335282. Its totient is φ = 99335280.

The previous prime is 99335273. The next prime is 99335293. The reversal of 99335281 is 18253399.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79834225 + 19501056 = 8935^2 + 4416^2 .

It is a cyclic number.

It is not a de Polignac number, because 99335281 - 2³ = 99335273 is a prime.

It is a super-2 number, since 2×99335281² = 19734996102697922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99335381) 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 as a sum of consecutive naturals, namely, 49667640 + 49667641.

It is an arithmetic number, because the mean of its divisors is an integer number (49667641).

Almost surely, 2^99335281 is an apocalyptic number.

99335281 is the 6304-th centered pentagonal number.

It is an amenable number.

99335281 is a deficient number, since it is larger than the sum of its proper divisors (1).

99335281 is an equidigital number, since it uses as much as digits as its factorization.

99335281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 40.

The square root of 99335281 is about 9966.7086342483. The cubic root of 99335281 is about 463.1281453767.

The spelling of 99335281 in words is "ninety-nine million, three hundred thirty-five thousand, two hundred eighty-one".