99191201 has 4 divisors (see below), whose sum is σ = 99255600. Its totient is φ = 99126804.

The previous prime is 99191179. The next prime is 99191231. The reversal of 99191201 is 10219199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99191201 - 2⁶ = 99191137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99191231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29831 + ... + 32988.

It is an arithmetic number, because the mean of its divisors is an integer number (24813900).

Almost surely, 2^99191201 is an apocalyptic number.

It is an amenable number.

99191201 is a deficient number, since it is larger than the sum of its proper divisors (64399).

99191201 is a wasteful number, since it uses less digits than its factorization.

99191201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64398.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 99191201 is about 9959.4779481658. The cubic root of 99191201 is about 462.9041236261.

The spelling of 99191201 in words is "ninety-nine million, one hundred ninety-one thousand, two hundred one".