12016429 has 4 divisors (see below), whose sum is σ = 12096160. Its totient is φ = 11936700.

The previous prime is 12016427. The next prime is 12016439. The reversal of 12016429 is 92461021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92461021 = 389 ⋅237689.

It is a cyclic number.

It is not a de Polignac number, because 12016429 - 2¹ = 12016427 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12016423) 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, 39639 + ... + 39940.

It is an arithmetic number, because the mean of its divisors is an integer number (3024040).

Almost surely, 2^12016429 is an apocalyptic number.

It is an amenable number.

12016429 is a deficient number, since it is larger than the sum of its proper divisors (79731).

12016429 is an equidigital number, since it uses as much as digits as its factorization.

12016429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79730.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12016429 is about 3466.4721259517. The cubic root of 12016429 is about 229.0472814787.

The spelling of 12016429 in words is "twelve million, sixteen thousand, four hundred twenty-nine".