989275143 has 4 divisors (see below), whose sum is σ = 1319033528. Its totient is φ = 659516760.

The previous prime is 989275127. The next prime is 989275159. The reversal of 989275143 is 341572989.

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

It is an interprime number because it is at equal distance from previous prime (989275127) and next prime (989275159).

It is not a de Polignac number, because 989275143 - 2⁴ = 989275127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 989275092 and 989275101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989275043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164879188 + ... + 164879193.

It is an arithmetic number, because the mean of its divisors is an integer number (329758382).

Almost surely, 2^989275143 is an apocalyptic number.

989275143 is a deficient number, since it is larger than the sum of its proper divisors (329758385).

989275143 is a wasteful number, since it uses less digits than its factorization.

989275143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329758384.

The product of its digits is 544320, while the sum is 48.

The square root of 989275143 is about 31452.7446020216. The cubic root of 989275143 is about 996.4121906855.

The spelling of 989275143 in words is "nine hundred eighty-nine million, two hundred seventy-five thousand, one hundred forty-three".