12069542 has 4 divisors (see below), whose sum is σ = 18104316. Its totient is φ = 6034770.

The previous prime is 12069517. The next prime is 12069619. The reversal of 12069542 is 24596021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24596021 = 137 ⋅179533.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3017384 + ... + 3017387.

It is an arithmetic number, because the mean of its divisors is an integer number (4526079).

Almost surely, 2^12069542 is an apocalyptic number.

12069542 is a deficient number, since it is larger than the sum of its proper divisors (6034774).

12069542 is an equidigital number, since it uses as much as digits as its factorization.

12069542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6034773.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 12069542 is about 3474.1246379484. The cubic root of 12069542 is about 229.3842509268.

The spelling of 12069542 in words is "twelve million, sixty-nine thousand, five hundred forty-two".