12261029 has 16 divisors (see below), whose sum is σ = 14281920. Its totient is φ = 10402560.

The previous prime is 12261013. The next prime is 12261043. The reversal of 12261029 is 92016221.

It is a cyclic number.

It is not a de Polignac number, because 12261029 - 2⁴ = 12261013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12260995 and 12261013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12261059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32162 + ... + 32540.

It is an arithmetic number, because the mean of its divisors is an integer number (892620).

Almost surely, 2^12261029 is an apocalyptic number.

It is an amenable number.

12261029 is a deficient number, since it is larger than the sum of its proper divisors (2020891).

12261029 is a wasteful number, since it uses less digits than its factorization.

12261029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12261029 is about 3501.5752169559. The cubic root of 12261029 is about 230.5909754865.

The spelling of 12261029 in words is "twelve million, two hundred sixty-one thousand, twenty-nine".