99619241 has 2 divisors, whose sum is σ = 99619242. Its totient is φ = 99619240.

The previous prime is 99619193. The next prime is 99619249. The reversal of 99619241 is 14291699.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85026841 + 14592400 = 9221^2 + 3820^2 .

It is an emirp because it is prime and its reverse (14291699) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99619241 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (99619249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49809620 + 49809621.

It is an arithmetic number, because the mean of its divisors is an integer number (49809621).

Almost surely, 2^99619241 is an apocalyptic number.

It is an amenable number.

99619241 is a deficient number, since it is larger than the sum of its proper divisors (1).

99619241 is an equidigital number, since it uses as much as digits as its factorization.

99619241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 99619241 is about 9980.9438932398. The cubic root of 99619241 is about 463.5690251730.

The spelling of 99619241 in words is "ninety-nine million, six hundred nineteen thousand, two hundred forty-one".