994485143 has 4 divisors (see below), whose sum is σ = 1008492048. Its totient is φ = 980478240.

The previous prime is 994485103. The next prime is 994485203. The reversal of 994485143 is 341584499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341584499 = 151 ⋅2262149.

It is a cyclic number.

It is not a de Polignac number, because 994485143 - 2¹⁰ = 994484119 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 (994485103) 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, 7003346 + ... + 7003487.

It is an arithmetic number, because the mean of its divisors is an integer number (252123012).

Almost surely, 2^994485143 is an apocalyptic number.

994485143 is a deficient number, since it is larger than the sum of its proper divisors (14006905).

994485143 is a wasteful number, since it uses less digits than its factorization.

994485143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14006904.

The product of its digits is 622080, while the sum is 47.

The square root of 994485143 is about 31535.4585030882. The cubic root of 994485143 is about 998.1583246474.

The spelling of 994485143 in words is "nine hundred ninety-four million, four hundred eighty-five thousand, one hundred forty-three".