16443113 has 8 divisors (see below), whose sum is σ = 17867520. Its totient is φ = 15074640.

The previous prime is 16443109. The next prime is 16443121. The reversal of 16443113 is 31134461.

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 16443113 - 2² = 16443109 is a prime.

It is a super-3 number, since 3×16443113³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16443013) 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, 13370 + ... + 14547.

It is an arithmetic number, because the mean of its divisors is an integer number (2233440).

Almost surely, 2^16443113 is an apocalyptic number.

It is an amenable number.

16443113 is a deficient number, since it is larger than the sum of its proper divisors (1424407).

16443113 is a wasteful number, since it uses less digits than its factorization.

16443113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27967.

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

The square root of 16443113 is about 4055.0108507870. The cubic root of 16443113 is about 254.2892575450.

Adding to 16443113 its reverse (31134461), we get a palindrome (47577574).

The spelling of 16443113 in words is "sixteen million, four hundred forty-three thousand, one hundred thirteen".