11520729 has 12 divisors (see below), whose sum is σ = 18154032. Its totient is φ = 6982200.

The previous prime is 11520709. The next prime is 11520739. The reversal of 11520729 is 92702511.

It is not a de Polignac number, because 11520729 - 2⁵ = 11520697 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (11520709) 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, 58087 + ... + 58284.

It is an arithmetic number, because the mean of its divisors is an integer number (1512836).

Almost surely, 2^11520729 is an apocalyptic number.

It is an amenable number.

11520729 is a deficient number, since it is larger than the sum of its proper divisors (6633303).

11520729 is a wasteful number, since it uses less digits than its factorization.

11520729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116388 (or 116385 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 11520729 is about 3394.2199398389. The cubic root of 11520729 is about 225.8534108259.

The spelling of 11520729 in words is "eleven million, five hundred twenty thousand, seven hundred twenty-nine".