1445222205 has 24 divisors (see below), whose sum is σ = 2862916992. Its totient is φ = 660672864.

The previous prime is 1445222197. The next prime is 1445222239. The reversal of 1445222205 is 5022225441.

1445222205 is a `hidden beast` number, since 1 + 4 + 452 + 2 + 2 + 205 = 666.

It is not a de Polignac number, because 1445222205 - 2³ = 1445222197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2293689 + ... + 2294318.

It is an arithmetic number, because the mean of its divisors is an integer number (119288208).

Almost surely, 2^1445222205 is an apocalyptic number.

1445222205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1445222205 is a deficient number, since it is larger than the sum of its proper divisors (1417694787).

1445222205 is a wasteful number, since it uses less digits than its factorization.

1445222205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588025 (or 4588022 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 1445222205 is about 38016.0782432907. The cubic root of 1445222205 is about 1130.6066664336.

Adding to 1445222205 its reverse (5022225441), we get a palindrome (6467447646).

The spelling of 1445222205 in words is "one billion, four hundred forty-five million, two hundred twenty-two thousand, two hundred five".