99531167 has 2 divisors, whose sum is σ = 99531168. Its totient is φ = 99531166.

The previous prime is 99531163. The next prime is 99531169. The reversal of 99531167 is 76113599.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99531167 - 2² = 99531163 is a prime.

Together with 99531169, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99531163) 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, 49765583 + 49765584.

It is an arithmetic number, because the mean of its divisors is an integer number (49765584).

Almost surely, 2^99531167 is an apocalyptic number.

99531167 is a deficient number, since it is larger than the sum of its proper divisors (1).

99531167 is an equidigital number, since it uses as much as digits as its factorization.

99531167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 41.

The square root of 99531167 is about 9976.5308098557. The cubic root of 99531167 is about 463.4323701251.

The spelling of 99531167 in words is "ninety-nine million, five hundred thirty-one thousand, one hundred sixty-seven".