163430143 has 16 divisors (see below), whose sum is σ = 171072000. Its totient is φ = 156008160.

The previous prime is 163430123. The next prime is 163430173. The reversal of 163430143 is 341034361.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163430143 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163430123) 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, 607413 + ... + 607681.

It is an arithmetic number, because the mean of its divisors is an integer number (10692000).

Almost surely, 2^163430143 is an apocalyptic number.

163430143 is a deficient number, since it is larger than the sum of its proper divisors (7641857).

163430143 is a wasteful number, since it uses less digits than its factorization.

163430143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 163430143 is about 12783.9799358416. The cubic root of 163430143 is about 546.7356422402.

The spelling of 163430143 in words is "one hundred sixty-three million, four hundred thirty thousand, one hundred forty-three".