11615013 has 12 divisors (see below), whose sum is σ = 17186988. Its totient is φ = 7554240.

The previous prime is 11614991. The next prime is 11615027. The reversal of 11615013 is 31051611.

11615013 is a `hidden beast` number, since 1 + 161 + 501 + 3 = 666.

11615013 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3560769 + 8054244 = 1887^2 + 2838^2 .

It is not a de Polignac number, because 11615013 - 2¹³ = 11606821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11615083) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15370 + ... + 16107.

It is an arithmetic number, because the mean of its divisors is an integer number (1432249).

Almost surely, 2^11615013 is an apocalyptic number.

It is an amenable number.

11615013 is a deficient number, since it is larger than the sum of its proper divisors (5571975).

11615013 is a wasteful number, since it uses less digits than its factorization.

11615013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31524 (or 31521 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 11615013 is about 3408.0805448228. The cubic root of 11615013 is about 226.4678550350.

Adding to 11615013 its reverse (31051611), we get a palindrome (42666624).

It can be divided in two parts, 116 and 15013, that added together give a square (15129 = 123²).

The spelling of 11615013 in words is "eleven million, six hundred fifteen thousand, thirteen".