99187133 has 2 divisors, whose sum is σ = 99187134. Its totient is φ = 99187132.

The previous prime is 99187097. The next prime is 99187141. The reversal of 99187133 is 33178199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52374169 + 46812964 = 7237^2 + 6842^2 .

It is a cyclic number.

It is not a de Polignac number, because 99187133 - 2²⁴ = 82409917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99187183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49593566 + 49593567.

It is an arithmetic number, because the mean of its divisors is an integer number (49593567).

Almost surely, 2^99187133 is an apocalyptic number.

It is an amenable number.

99187133 is a deficient number, since it is larger than the sum of its proper divisors (1).

99187133 is an equidigital number, since it uses as much as digits as its factorization.

99187133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 99187133 is about 9959.2737184998. The cubic root of 99187133 is about 462.8977953776.

The spelling of 99187133 in words is "ninety-nine million, one hundred eighty-seven thousand, one hundred thirty-three".