99985147 has 2 divisors, whose sum is σ = 99985148. Its totient is φ = 99985146.

The previous prime is 99985141. The next prime is 99985153. The reversal of 99985147 is 74158999.

It is a balanced prime because it is at equal distance from previous prime (99985141) and next prime (99985153).

It is an emirp because it is prime and its reverse (74158999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99985147 - 2²³ = 91596539 is a prime.

It is a super-2 number, since 2×99985147² = 19994059241223218, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99985094 and 99985103.

It is not a weakly prime, because it can be changed into another prime (99985141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49992573 + 49992574.

It is an arithmetic number, because the mean of its divisors is an integer number (49992574).

Almost surely, 2^99985147 is an apocalyptic number.

99985147 is a deficient number, since it is larger than the sum of its proper divisors (1).

99985147 is an equidigital number, since it uses as much as digits as its factorization.

99985147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The square root of 99985147 is about 9999.2573224215. The cubic root of 99985147 is about 464.1359017171.

The spelling of 99985147 in words is "ninety-nine million, nine hundred eighty-five thousand, one hundred forty-seven".