11520613 has 8 divisors (see below), whose sum is σ = 12433400. Its totient is φ = 10611648.

The previous prime is 11520601. The next prime is 11520617. The reversal of 11520613 is 31602511.

It can be written as a sum of positive squares in 4 ways, for example, as 544644 + 10975969 = 738^2 + 3313^2 .

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 11520613 - 2⁵ = 11520581 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 (11520617) 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, 10243 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (1554175).

Almost surely, 2^11520613 is an apocalyptic number.

11520613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11520613 is a deficient number, since it is larger than the sum of its proper divisors (912787).

11520613 is a wasteful number, since it uses less digits than its factorization.

11520613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 11520613 is about 3394.2028519227. The cubic root of 11520613 is about 225.8526527985.

The spelling of 11520613 in words is "eleven million, five hundred twenty thousand, six hundred thirteen".