1225144352 has 12 divisors (see below), whose sum is σ = 2412003006. Its totient is φ = 612572160.

The previous prime is 1225144309. The next prime is 1225144373. The reversal of 1225144352 is 2534415221.

It can be written as a sum of positive squares in only one way, i.e., 1161719056 + 63425296 = 34084^2 + 7964^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19142849 + ... + 19142912.

Almost surely, 2^1225144352 is an apocalyptic number.

It is an amenable number.

1225144352 is a deficient number, since it is larger than the sum of its proper divisors (1186858654).

1225144352 is an equidigital number, since it uses as much as digits as its factorization.

1225144352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38285771 (or 38285763 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 1225144352 is about 35002.0621106814. The cubic root of 1225144352 is about 1070.0295074403.

Adding to 1225144352 its reverse (2534415221), we get a palindrome (3759559573).

The spelling of 1225144352 in words is "one billion, two hundred twenty-five million, one hundred forty-four thousand, three hundred fifty-two".