99261061 has 2 divisors, whose sum is σ = 99261062. Its totient is φ = 99261060.

The previous prime is 99261059. The next prime is 99261119. The reversal of 99261061 is 16016299.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50680161 + 48580900 = 7119^2 + 6970^2 .

It is a cyclic number.

It is not a de Polignac number, because 99261061 - 2¹ = 99261059 is a prime.

Together with 99261059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99261161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49630530 + 49630531.

It is an arithmetic number, because the mean of its divisors is an integer number (49630531).

Almost surely, 2^99261061 is an apocalyptic number.

It is an amenable number.

99261061 is a deficient number, since it is larger than the sum of its proper divisors (1).

99261061 is an equidigital number, since it uses as much as digits as its factorization.

99261061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 99261061 is about 9962.9845427964. The cubic root of 99261061 is about 463.0127720168.

The spelling of 99261061 in words is "ninety-nine million, two hundred sixty-one thousand, sixty-one".