99543251 has 2 divisors, whose sum is σ = 99543252. Its totient is φ = 99543250.

The previous prime is 99543233. The next prime is 99543253. The reversal of 99543251 is 15234599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99543251 - 2⁶ = 99543187 is a prime.

Together with 99543253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99543253) 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, 49771625 + 49771626.

It is an arithmetic number, because the mean of its divisors is an integer number (49771626).

Almost surely, 2^99543251 is an apocalyptic number.

99543251 is a deficient number, since it is larger than the sum of its proper divisors (1).

99543251 is an equidigital number, since it uses as much as digits as its factorization.

99543251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48600, while the sum is 38.

The square root of 99543251 is about 9977.1364128191. The cubic root of 99543251 is about 463.4511243516.

The spelling of 99543251 in words is "ninety-nine million, five hundred forty-three thousand, two hundred fifty-one".