20098143 has 24 divisors (see below), whose sum is σ = 32912880. Its totient is φ = 11715840.

The previous prime is 20098129. The next prime is 20098193. The reversal of 20098143 is 34189002.

It is not a de Polignac number, because 20098143 - 2⁶ = 20098079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20098123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2298 + ... + 6743.

It is an arithmetic number, because the mean of its divisors is an integer number (1371370).

Almost surely, 2^20098143 is an apocalyptic number.

20098143 is a deficient number, since it is larger than the sum of its proper divisors (12814737).

20098143 is a wasteful number, since it uses less digits than its factorization.

20098143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079 (or 9076 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20098143 is about 4483.0952477055. The cubic root of 20098143 is about 271.8850391854.

The spelling of 20098143 in words is "twenty million, ninety-eight thousand, one hundred forty-three".