99531941 has 2 divisors, whose sum is σ = 99531942. Its totient is φ = 99531940.

The previous prime is 99531919. The next prime is 99531967. The reversal of 99531941 is 14913599.

99531941 = 7054² + 7055².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49773025 + 49758916 = 7055^2 + 7054^2 .

It is an emirp because it is prime and its reverse (14913599) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99531941 - 2¹⁰ = 99530917 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99531041) 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, 49765970 + 49765971.

It is an arithmetic number, because the mean of its divisors is an integer number (49765971).

Almost surely, 2^99531941 is an apocalyptic number.

99531941 is the 7055-th centered square number.

It is an amenable number.

99531941 is a deficient number, since it is larger than the sum of its proper divisors (1).

99531941 is an equidigital number, since it uses as much as digits as its factorization.

99531941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43740, while the sum is 41.

The square root of 99531941 is about 9976.5696008197. The cubic root of 99531941 is about 463.4335714096.

The spelling of 99531941 in words is "ninety-nine million, five hundred thirty-one thousand, nine hundred forty-one".