12057539 has 8 divisors (see below), whose sum is σ = 13749120. Its totient is φ = 10475136.

The previous prime is 12057499. The next prime is 12057541. The reversal of 12057539 is 93575021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12057539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12057139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27059 + ... + 27500.

It is an arithmetic number, because the mean of its divisors is an integer number (1718640).

Almost surely, 2^12057539 is an apocalyptic number.

12057539 is a deficient number, since it is larger than the sum of its proper divisors (1691581).

12057539 is a wasteful number, since it uses less digits than its factorization.

12057539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54589.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 12057539 is about 3472.3967227262. The cubic root of 12057539 is about 229.3081858374.

The spelling of 12057539 in words is "twelve million, fifty-seven thousand, five hundred thirty-nine".