99990175 has 24 divisors (see below), whose sum is σ = 132246000. Its totient is φ = 74734080.

The previous prime is 99990161. The next prime is 99990181. The reversal of 99990175 is 57109999.

It is a de Polignac number, because none of the positive numbers 2^k-99990175 is a prime.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62536 + ... + 64114.

It is an arithmetic number, because the mean of its divisors is an integer number (5510250).

Almost surely, 2^99990175 is an apocalyptic number.

99990175 is a deficient number, since it is larger than the sum of its proper divisors (32255825).

99990175 is a wasteful number, since it uses less digits than its factorization.

99990175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 229635, while the sum is 49.

The square root of 99990175 is about 9999.5087379331. The cubic root of 99990175 is about 464.1436816600.

The spelling of 99990175 in words is "ninety-nine million, nine hundred ninety thousand, one hundred seventy-five".