1445375222 has 4 divisors (see below), whose sum is σ = 2168062836. Its totient is φ = 722687610.

The previous prime is 1445375221. The next prime is 1445375251. The reversal of 1445375222 is 2225735441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445375221) 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 as a sum of consecutive naturals, namely, 361343804 + ... + 361343807.

It is an arithmetic number, because the mean of its divisors is an integer number (542015709).

Almost surely, 2^1445375222 is an apocalyptic number.

1445375222 is a deficient number, since it is larger than the sum of its proper divisors (722687614).

1445375222 is an equidigital number, since it uses as much as digits as its factorization.

1445375222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722687613.

The product of its digits is 67200, while the sum is 35.

The square root of 1445375222 is about 38018.0907200769. The cubic root of 1445375222 is about 1130.6465670879.

The spelling of 1445375222 in words is "one billion, four hundred forty-five million, three hundred seventy-five thousand, two hundred twenty-two".