99518135 has 4 divisors (see below), whose sum is σ = 119421768. Its totient is φ = 79614504.

The previous prime is 99518131. The next prime is 99518147. The reversal of 99518135 is 53181599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99518135 - 2² = 99518131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99518092 and 99518101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99518131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9951809 + ... + 9951818.

It is an arithmetic number, because the mean of its divisors is an integer number (29855442).

Almost surely, 2^99518135 is an apocalyptic number.

99518135 is a deficient number, since it is larger than the sum of its proper divisors (19903633).

99518135 is a wasteful number, since it uses less digits than its factorization.

99518135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19903632.

The product of its digits is 48600, while the sum is 41.

The square root of 99518135 is about 9975.8776556251. The cubic root of 99518135 is about 463.4121429124.

The spelling of 99518135 in words is "ninety-nine million, five hundred eighteen thousand, one hundred thirty-five".