99139585 has 8 divisors (see below), whose sum is σ = 119021760. Its totient is φ = 79275504.

The previous prime is 99139583. The next prime is 99139609. The reversal of 99139585 is 58593199.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99139585 - 2¹ = 99139583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99139583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16044 + ... + 21346.

It is an arithmetic number, because the mean of its divisors is an integer number (14877720).

It is a Proth number, since it is equal to 6051 ⋅ 2¹⁴ + 1 and 6051 < 2¹⁴.

Almost surely, 2^99139585 is an apocalyptic number.

It is an amenable number.

99139585 is a deficient number, since it is larger than the sum of its proper divisors (19882175).

99139585 is a wasteful number, since it uses less digits than its factorization.

99139585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9047.

The product of its digits is 437400, while the sum is 49.

The square root of 99139585 is about 9956.8863104888. The cubic root of 99139585 is about 462.8238160832.

The spelling of 99139585 in words is "ninety-nine million, one hundred thirty-nine thousand, five hundred eighty-five".