99905148 has 36 divisors (see below), whose sum is σ = 288615600. Its totient is φ = 28544256.

The previous prime is 99905147. The next prime is 99905153. The reversal of 99905148 is 84150999.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99905147) 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 11 ways as a sum of consecutive naturals, for example, 197973 + ... + 198476.

It is an arithmetic number, because the mean of its divisors is an integer number (8017100).

Almost surely, 2^99905148 is an apocalyptic number.

It is an amenable number.

99905148 is an abundant number, since it is smaller than the sum of its proper divisors (188710452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99905148 is a wasteful number, since it uses less digits than its factorization.

99905148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396466 (or 396461 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 99905148 is about 9995.2562748536. The cubic root of 99905148 is about 464.0120822756.

The spelling of 99905148 in words is "ninety-nine million, nine hundred five thousand, one hundred forty-eight".