99112405 has 16 divisors (see below), whose sum is σ = 141836544. Its totient is φ = 65007360.

The previous prime is 99112399. The next prime is 99112427. The reversal of 99112405 is 50421199.

99112405 = 190² + 191² + ... + 672².

It is not a de Polignac number, because 99112405 - 2⁹ = 99111893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60756 + ... + 62365.

It is an arithmetic number, because the mean of its divisors is an integer number (8864784).

Almost surely, 2^99112405 is an apocalyptic number.

It is an amenable number.

99112405 is a deficient number, since it is larger than the sum of its proper divisors (42724139).

99112405 is a wasteful number, since it uses less digits than its factorization.

99112405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123156.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 99112405 is about 9955.5213324065. The cubic root of 99112405 is about 462.7815164606.

The spelling of 99112405 in words is "ninety-nine million, one hundred twelve thousand, four hundred five".