1445145222 has 8 divisors (see below), whose sum is σ = 2890290456. Its totient is φ = 481715072.

The previous prime is 1445145209. The next prime is 1445145227. The reversal of 1445145222 is 2225415441.

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

1445145222 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 1445145222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445145227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120428763 + ... + 120428774.

It is an arithmetic number, because the mean of its divisors is an integer number (361286307).

Almost surely, 2^1445145222 is an apocalyptic number.

1445145222 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1445145222 is a wasteful number, since it uses less digits than its factorization.

1445145222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240857542.

The product of its digits is 12800, while the sum is 30.

The square root of 1445145222 is about 38015.0657239995. The cubic root of 1445145222 is about 1130.5865913110.

The spelling of 1445145222 in words is "one billion, four hundred forty-five million, one hundred forty-five thousand, two hundred twenty-two".