12017129 has 2 divisors, whose sum is σ = 12017130. Its totient is φ = 12017128.

The previous prime is 12017123. The next prime is 12017143. The reversal of 12017129 is 92171021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11377129 + 640000 = 3373^2 + 800^2 .

It is an emirp because it is prime and its reverse (92171021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12017129 - 2¹⁶ = 11951593 is a prime.

It is a super-2 number, since 2×12017129² = 288822778805282, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12017123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6008564 + 6008565.

It is an arithmetic number, because the mean of its divisors is an integer number (6008565).

Almost surely, 2^12017129 is an apocalyptic number.

It is an amenable number.

12017129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12017129 is an equidigital number, since it uses as much as digits as its factorization.

12017129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 12017129 is about 3466.5730916858. The cubic root of 12017129 is about 229.0517290004.

The spelling of 12017129 in words is "twelve million, seventeen thousand, one hundred twenty-nine".