99235121 has 2 divisors, whose sum is σ = 99235122. Its totient is φ = 99235120.

The previous prime is 99235111. The next prime is 99235127. The reversal of 99235121 is 12153299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82719025 + 16516096 = 9095^2 + 4064^2 .

It is an emirp because it is prime and its reverse (12153299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99235121 - 2⁶ = 99235057 is a prime.

It is not a weakly prime, because it can be changed into another prime (99235127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49617560 + 49617561.

It is an arithmetic number, because the mean of its divisors is an integer number (49617561).

Almost surely, 2^99235121 is an apocalyptic number.

It is an amenable number.

99235121 is a deficient number, since it is larger than the sum of its proper divisors (1).

99235121 is an equidigital number, since it uses as much as digits as its factorization.

99235121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4860, while the sum is 32.

The square root of 99235121 is about 9961.6826389923. The cubic root of 99235121 is about 462.9724352940.

The spelling of 99235121 in words is "ninety-nine million, two hundred thirty-five thousand, one hundred twenty-one".