1447221252 has 24 divisors (see below), whose sum is σ = 3379477696. Its totient is φ = 482031648.

The previous prime is 1447221247. The next prime is 1447221311. The reversal of 1447221252 is 2521227441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30643 + ... + 61914.

Almost surely, 2^1447221252 is an apocalyptic number.

1447221252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1447221252 is an abundant number, since it is smaller than the sum of its proper divisors (1932256444).

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

1447221252 is a wasteful number, since it uses less digits than its factorization.

1447221252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93867 (or 93865 counting only the distinct ones).

The product of its digits is 8960, while the sum is 30.

The square root of 1447221252 is about 38042.3612831801. The cubic root of 1447221252 is about 1131.1277153942.

Adding to 1447221252 its reverse (2521227441), we get a palindrome (3968448693).

The spelling of 1447221252 in words is "one billion, four hundred forty-seven million, two hundred twenty-one thousand, two hundred fifty-two".