99948143 has 4 divisors (see below), whose sum is σ = 99979800. Its totient is φ = 99916488.

The previous prime is 99948131. The next prime is 99948187. The reversal of 99948143 is 34184999.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99948143 - 2¹⁰ = 99947119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99948643) 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 3 ways as a sum of consecutive naturals, for example, 10493 + ... + 17606.

It is an arithmetic number, because the mean of its divisors is an integer number (24994950).

Almost surely, 2^99948143 is an apocalyptic number.

99948143 is a deficient number, since it is larger than the sum of its proper divisors (31657).

99948143 is a wasteful number, since it uses less digits than its factorization.

99948143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31656.

The product of its digits is 279936, while the sum is 47.

The square root of 99948143 is about 9997.4068137693. The cubic root of 99948143 is about 464.0786365311.

The spelling of 99948143 in words is "ninety-nine million, nine hundred forty-eight thousand, one hundred forty-three".