11616521 has 8 divisors (see below), whose sum is σ = 13358784. Its totient is φ = 9894960.

The previous prime is 11616511. The next prime is 11616529. The reversal of 11616521 is 12561611.

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 11616521 - 2¹⁰ = 11615497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11616529) 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, 3950 + ... + 6231.

It is an arithmetic number, because the mean of its divisors is an integer number (1669848).

Almost surely, 2^11616521 is an apocalyptic number.

It is an amenable number.

11616521 is a deficient number, since it is larger than the sum of its proper divisors (1742263).

11616521 is a wasteful number, since it uses less digits than its factorization.

11616521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10351.

The product of its digits is 360, while the sum is 23.

The square root of 11616521 is about 3408.3017765450. The cubic root of 11616521 is about 226.4776555333.

The spelling of 11616521 in words is "eleven million, six hundred sixteen thousand, five hundred twenty-one".