12205045 has 8 divisors (see below), whose sum is σ = 14680224. Its totient is φ = 9741264.

The previous prime is 12205033. The next prime is 12205069. The reversal of 12205045 is 54050221.

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

It is a cyclic number.

It is not a de Polignac number, because 12205045 - 2¹³ = 12196853 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

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, 279 + ... + 4948.

It is an arithmetic number, because the mean of its divisors is an integer number (1835028).

Almost surely, 2^12205045 is an apocalyptic number.

It is an amenable number.

12205045 is a deficient number, since it is larger than the sum of its proper divisors (2475179).

12205045 is an equidigital number, since it uses as much as digits as its factorization.

12205045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5699.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 12205045 is about 3493.5719543184. The cubic root of 12205045 is about 230.2394796120.

Adding to 12205045 its reverse (54050221), we get a palindrome (66255266).

The spelling of 12205045 in words is "twelve million, two hundred five thousand, forty-five".