99155123 has 8 divisors (see below), whose sum is σ = 100535808. Its totient is φ = 97784064.

The previous prime is 99155087. The next prime is 99155137. The reversal of 99155123 is 32155199.

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 99155123 - 2¹² = 99151027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99155423) 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 7 ways as a sum of consecutive naturals, for example, 19715 + ... + 24227.

It is an arithmetic number, because the mean of its divisors is an integer number (12566976).

Almost surely, 2^99155123 is an apocalyptic number.

99155123 is a deficient number, since it is larger than the sum of its proper divisors (1380685).

99155123 is a wasteful number, since it uses less digits than its factorization.

99155123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4813.

The product of its digits is 12150, while the sum is 35.

The square root of 99155123 is about 9957.6665439248. Note that the first 3 decimals coincide. The cubic root of 99155123 is about 462.8479940500.

The spelling of 99155123 in words is "ninety-nine million, one hundred fifty-five thousand, one hundred twenty-three".