99129119 has 4 divisors (see below), whose sum is σ = 99234744. Its totient is φ = 99023496.

The previous prime is 99129077. The next prime is 99129127. The reversal of 99129119 is 91192199.

It is a happy number.

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 99129119 - 2⁸ = 99128863 is a prime.

It is a super-2 number, since 2×99129119² = 19653164467432322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99129169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51392 + ... + 53285.

It is an arithmetic number, because the mean of its divisors is an integer number (24808686).

Almost surely, 2^99129119 is an apocalyptic number.

99129119 is a deficient number, since it is larger than the sum of its proper divisors (105625).

99129119 is a wasteful number, since it uses less digits than its factorization.

99129119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105624.

The product of its digits is 13122, while the sum is 41.

The square root of 99129119 is about 9956.3607307088. The cubic root of 99129119 is about 462.8075289983.

The spelling of 99129119 in words is "ninety-nine million, one hundred twenty-nine thousand, one hundred nineteen".