12045729 has 8 divisors (see below), whose sum is σ = 16300960. Its totient is φ = 7910496.

The previous prime is 12045727. The next prime is 12045743. The reversal of 12045729 is 92754021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12045729 - 2¹ = 12045727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12045696 and 12045705.

It is not an unprimeable number, because it can be changed into a prime (12045727) 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, 29764 + ... + 30165.

It is an arithmetic number, because the mean of its divisors is an integer number (2037620).

Almost surely, 2^12045729 is an apocalyptic number.

It is an amenable number.

12045729 is a deficient number, since it is larger than the sum of its proper divisors (4255231).

12045729 is an equidigital number, since it uses as much as digits as its factorization.

12045729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59999.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 12045729 is about 3470.6957515749. The cubic root of 12045729 is about 229.2332945368.

The spelling of 12045729 in words is "twelve million, forty-five thousand, seven hundred twenty-nine".