12051145 has 8 divisors (see below), whose sum is σ = 14538240. Its totient is φ = 9589680.

The previous prime is 12051139. The next prime is 12051167. The reversal of 12051145 is 54115021.

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

It is not a de Polignac number, because 12051145 - 2¹⁹ = 11526857 is a prime.

It is a super-2 number, since 2×12051145² = 290460191622050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5355 + ... + 7264.

It is an arithmetic number, because the mean of its divisors is an integer number (1817280).

Almost surely, 2^12051145 is an apocalyptic number.

It is an amenable number.

12051145 is a deficient number, since it is larger than the sum of its proper divisors (2487095).

12051145 is a wasteful number, since it uses less digits than its factorization.

12051145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12815.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 12051145 is about 3471.4759109059. The cubic root of 12051145 is about 229.2676453427.

Adding to 12051145 its reverse (54115021), we get a palindrome (66166166).

The spelling of 12051145 in words is "twelve million, fifty-one thousand, one hundred forty-five".