99331541 has 2 divisors, whose sum is σ = 99331542. Its totient is φ = 99331540.

The previous prime is 99331513. The next prime is 99331543. The reversal of 99331541 is 14513399.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76195441 + 23136100 = 8729^2 + 4810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99331541 is a prime.

Together with 99331543, 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 (99331543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49665770 + 49665771.

It is an arithmetic number, because the mean of its divisors is an integer number (49665771).

Almost surely, 2^99331541 is an apocalyptic number.

It is an amenable number.

99331541 is a deficient number, since it is larger than the sum of its proper divisors (1).

99331541 is an equidigital number, since it uses as much as digits as its factorization.

99331541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 35.

The square root of 99331541 is about 9966.5210078542. The cubic root of 99331541 is about 463.1223330041.

The spelling of 99331541 in words is "ninety-nine million, three hundred thirty-one thousand, five hundred forty-one".