12025729 has 4 divisors (see below), whose sum is σ = 12102484. Its totient is φ = 11948976.

The previous prime is 12025697. The next prime is 12025733. The reversal of 12025729 is 92752021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92752021 = 947 ⋅97943.

It can be written as a sum of positive squares in 2 ways, for example, as 7728400 + 4297329 = 2780^2 + 2073^2 .

It is a cyclic number.

It is not a de Polignac number, because 12025729 - 2⁵ = 12025697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12025697 and 12025706.

It is not an unprimeable number, because it can be changed into a prime (12025129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38142 + ... + 38455.

It is an arithmetic number, because the mean of its divisors is an integer number (3025621).

Almost surely, 2^12025729 is an apocalyptic number.

It is an amenable number.

12025729 is a deficient number, since it is larger than the sum of its proper divisors (76755).

12025729 is an equidigital number, since it uses as much as digits as its factorization.

12025729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76754.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12025729 is about 3467.8132879381. The cubic root of 12025729 is about 229.1063558904.

The spelling of 12025729 in words is "twelve million, twenty-five thousand, seven hundred twenty-nine".