143730197 has 16 divisors (see below), whose sum is σ = 162207360. Its totient is φ = 126363072.

The previous prime is 143730179. The next prime is 143730233. The reversal of 143730197 is 791037341.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143730197 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 (143730107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79538 + ... + 81324.

It is an arithmetic number, because the mean of its divisors is an integer number (10137960).

Almost surely, 2^143730197 is an apocalyptic number.

It is an amenable number.

143730197 is a deficient number, since it is larger than the sum of its proper divisors (18477163).

143730197 is a wasteful number, since it uses less digits than its factorization.

143730197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 143730197 is about 11988.7529376495. The cubic root of 143730197 is about 523.8207205290.

The spelling of 143730197 in words is "one hundred forty-three million, seven hundred thirty thousand, one hundred ninety-seven".