16012013 has 4 divisors (see below), whose sum is σ = 16023900. Its totient is φ = 16000128.

The previous prime is 16011997. The next prime is 16012037. The reversal of 16012013 is 31021061.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2601769 + 13410244 = 1613^2 + 3662^2 .

It is a cyclic number.

It is not a de Polignac number, because 16012013 - 2⁴ = 16011997 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 (16012063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3620 + ... + 6717.

It is an arithmetic number, because the mean of its divisors is an integer number (4005975).

Almost surely, 2^16012013 is an apocalyptic number.

It is an amenable number.

16012013 is a deficient number, since it is larger than the sum of its proper divisors (11887).

16012013 is a wasteful number, since it uses less digits than its factorization.

16012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11886.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 16012013 is about 4001.5013432461. The cubic root of 16012013 is about 252.0472585006.

Adding to 16012013 its reverse (31021061), we get a palindrome (47033074).

The spelling of 16012013 in words is "sixteen million, twelve thousand, thirteen".