99121067 has 8 divisors (see below), whose sum is σ = 107512272. Its totient is φ = 91014400.

The previous prime is 99121027. The next prime is 99121069. The reversal of 99121067 is 76012199.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99121067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99121069) 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, 70409 + ... + 71802.

It is an arithmetic number, because the mean of its divisors is an integer number (13439034).

Almost surely, 2^99121067 is an apocalyptic number.

99121067 is a deficient number, since it is larger than the sum of its proper divisors (8391205).

99121067 is a wasteful number, since it uses less digits than its factorization.

99121067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142269.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 99121067 is about 9955.9563578794. The cubic root of 99121067 is about 462.7949977758.

The spelling of 99121067 in words is "ninety-nine million, one hundred twenty-one thousand, sixty-seven".