12013729 has 8 divisors (see below), whose sum is σ = 14786240. Its totient is φ = 9505296.

The previous prime is 12013699. The next prime is 12013733. The reversal of 12013729 is 92731021.

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 12013729 - 2⁷ = 12013601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65919 + ... + 66100.

It is an arithmetic number, because the mean of its divisors is an integer number (1848280).

Almost surely, 2^12013729 is an apocalyptic number.

It is an amenable number.

12013729 is a deficient number, since it is larger than the sum of its proper divisors (2772511).

12013729 is a wasteful number, since it uses less digits than its factorization.

12013729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132039.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12013729 is about 3466.0826591413. The cubic root of 12013729 is about 229.0301251343.

The spelling of 12013729 in words is "twelve million, thirteen thousand, seven hundred twenty-nine".