99123005 has 8 divisors (see below), whose sum is σ = 125944632. Its totient is φ = 74633728.

The previous prime is 99122993. The next prime is 99123007. The reversal of 99123005 is 50032199.

It can be written as a sum of positive squares in 4 ways, for example, as 5207524 + 93915481 = 2282^2 + 9691^2 .

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 99123005 - 2⁶ = 99122941 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 (99123007) 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, 582992 + ... + 583161.

It is an arithmetic number, because the mean of its divisors is an integer number (15743079).

Almost surely, 2^99123005 is an apocalyptic number.

It is an amenable number.

99123005 is a deficient number, since it is larger than the sum of its proper divisors (26821627).

99123005 is a wasteful number, since it uses less digits than its factorization.

99123005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166175.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 99123005 is about 9956.0536860746. The cubic root of 99123005 is about 462.7980139219.

The spelling of 99123005 in words is "ninety-nine million, one hundred twenty-three thousand, five".