16431143 has 8 divisors (see below), whose sum is σ = 17580720. Its totient is φ = 15310080.

The previous prime is 16431127. The next prime is 16431161. The reversal of 16431143 is 34113461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16431143 - 2⁴ = 16431127 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 (16431193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5930 + ... + 8247.

It is an arithmetic number, because the mean of its divisors is an integer number (2197590).

Almost surely, 2^16431143 is an apocalyptic number.

16431143 is a deficient number, since it is larger than the sum of its proper divisors (1149577).

16431143 is a wasteful number, since it uses less digits than its factorization.

16431143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14257.

The product of its digits is 864, while the sum is 23.

The square root of 16431143 is about 4053.5346304182. The cubic root of 16431143 is about 254.2275380617.

The spelling of 16431143 in words is "sixteen million, four hundred thirty-one thousand, one hundred forty-three".