12055739 has 4 divisors (see below), whose sum is σ = 12136800. Its totient is φ = 11974680.

The previous prime is 12055723. The next prime is 12055741. The reversal of 12055739 is 93755021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93755021 = 419 ⋅223759.

It is a cyclic number.

It is not a de Polignac number, because 12055739 - 2⁴ = 12055723 is a prime.

It is a super-2 number, since 2×12055739² = 290681685672242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12055759) 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 3 ways as a sum of consecutive naturals, for example, 40307 + ... + 40604.

It is an arithmetic number, because the mean of its divisors is an integer number (3034200).

Almost surely, 2^12055739 is an apocalyptic number.

12055739 is a deficient number, since it is larger than the sum of its proper divisors (81061).

12055739 is an equidigital number, since it uses as much as digits as its factorization.

12055739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81060.

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

The square root of 12055739 is about 3472.1375260781. The cubic root of 12055739 is about 229.2967745736.

The spelling of 12055739 in words is "twelve million, fifty-five thousand, seven hundred thirty-nine".