99888133 has 2 divisors, whose sum is σ = 99888134. Its totient is φ = 99888132.

The previous prime is 99888101. The next prime is 99888143. The reversal of 99888133 is 33188899.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91833889 + 8054244 = 9583^2 + 2838^2 .

It is an emirp because it is prime and its reverse (33188899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99888133 - 2⁵ = 99888101 is a prime.

It is a super-3 number, since 3×99888133³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99888143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49944066 + 49944067.

It is an arithmetic number, because the mean of its divisors is an integer number (49944067).

Almost surely, 2^99888133 is an apocalyptic number.

It is an amenable number.

99888133 is a deficient number, since it is larger than the sum of its proper divisors (1).

99888133 is an equidigital number, since it uses as much as digits as its factorization.

99888133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 49.

The square root of 99888133 is about 9994.4050848462. The cubic root of 99888133 is about 463.9857385752.

The spelling of 99888133 in words is "ninety-nine million, eight hundred eighty-eight thousand, one hundred thirty-three".