12056145 has 16 divisors (see below), whose sum is σ = 20424960. Its totient is φ = 6051584.

The previous prime is 12056129. The next prime is 12056153. The reversal of 12056145 is 54165021.

It is a cyclic number.

It is not a de Polignac number, because 12056145 - 2⁴ = 12056129 is a prime.

It is a super-2 number, since 2×12056145² = 290701264522050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23385 + ... + 23894.

It is an arithmetic number, because the mean of its divisors is an integer number (1276560).

Almost surely, 2^12056145 is an apocalyptic number.

12056145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12056145 is a deficient number, since it is larger than the sum of its proper divisors (8368815).

12056145 is a wasteful number, since it uses less digits than its factorization.

12056145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47304.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12056145 is about 3472.1959910120. The cubic root of 12056145 is about 229.2993485467.

It can be divided in two parts, 120561 and 45, that multiplied together give a palindrome (5425245).

The spelling of 12056145 in words is "twelve million, fifty-six thousand, one hundred forty-five".