99136061 has 12 divisors (see below), whose sum is σ = 108076788. Its totient is φ = 90554112.

The previous prime is 99136031. The next prime is 99136069. The reversal of 99136061 is 16063199.

It can be written as a sum of positive squares in 6 ways, for example, as 26988025 + 72148036 = 5195^2 + 8494^2 .

It is not a de Polignac number, because 99136061 - 2⁶ = 99135997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99136069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249515 + ... + 249911.

It is an arithmetic number, because the mean of its divisors is an integer number (9006399).

Almost surely, 2^99136061 is an apocalyptic number.

It is an amenable number.

99136061 is a deficient number, since it is larger than the sum of its proper divisors (8940727).

99136061 is an equidigital number, since it uses as much as digits as its factorization.

99136061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848 (or 451 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 35.

The square root of 99136061 is about 9956.7093459637. The cubic root of 99136061 is about 462.8183321975.

The spelling of 99136061 in words is "ninety-nine million, one hundred thirty-six thousand, sixty-one".