99148961 has 2 divisors, whose sum is σ = 99148962. Its totient is φ = 99148960.

The previous prime is 99148949. The next prime is 99148963. The reversal of 99148961 is 16984199.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56325025 + 42823936 = 7505^2 + 6544^2 .

It is an emirp because it is prime and its reverse (16984199) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99148961 - 2¹⁴ = 99132577 is a prime.

Together with 99148963, 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 (99148963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49574480 + 49574481.

It is an arithmetic number, because the mean of its divisors is an integer number (49574481).

Almost surely, 2^99148961 is an apocalyptic number.

It is an amenable number.

99148961 is a deficient number, since it is larger than the sum of its proper divisors (1).

99148961 is an equidigital number, since it uses as much as digits as its factorization.

99148961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 47.

The square root of 99148961 is about 9957.3571292788. The cubic root of 99148961 is about 462.8384059476.

The spelling of 99148961 in words is "ninety-nine million, one hundred forty-eight thousand, nine hundred sixty-one".