16015013 has 8 divisors (see below), whose sum is σ = 18676800. Its totient is φ = 13726860.

The previous prime is 16015009. The next prime is 16015057. The reversal of 16015013 is 31051061.

It is not a de Polignac number, because 16015013 - 2² = 16015009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16014982 and 16015000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16015073) 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, 23003 + ... + 23688.

It is an arithmetic number, because the mean of its divisors is an integer number (2334600).

Almost surely, 2^16015013 is an apocalyptic number.

It is an amenable number.

16015013 is a deficient number, since it is larger than the sum of its proper divisors (2661787).

16015013 is an frugal number, since it uses more digits than its factorization.

16015013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46712 (or 46698 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 16015013 is about 4001.8761849912. The cubic root of 16015013 is about 252.0629986527.

Adding to 16015013 its reverse (31051061), we get a palindrome (47066074).

The spelling of 16015013 in words is "sixteen million, fifteen thousand, thirteen".