16431013 has 8 divisors (see below), whose sum is σ = 16744320. Its totient is φ = 16119840.

The previous prime is 16430989. The next prime is 16431017. The reversal of 16431013 is 31013461.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16431013 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 (16431017) 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, 28593 + ... + 29161.

It is an arithmetic number, because the mean of its divisors is an integer number (2093040).

Almost surely, 2^16431013 is an apocalyptic number.

It is an amenable number.

16431013 is a deficient number, since it is larger than the sum of its proper divisors (313307).

16431013 is an equidigital number, since it uses as much as digits as its factorization.

16431013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 16431013 is about 4053.5185949987. The cubic root of 16431013 is about 254.2268675937.

Adding to 16431013 its reverse (31013461), we get a palindrome (47444474).

The spelling of 16431013 in words is "sixteen million, four hundred thirty-one thousand, thirteen".