1225241752 has 64 divisors (see below), whose sum is σ = 2769235200. Its totient is φ = 496471680.

The previous prime is 1225241749. The next prime is 1225241761. The reversal of 1225241752 is 2571425221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 779127 + ... + 780697.

It is an arithmetic number, because the mean of its divisors is an integer number (43269300).

Almost surely, 2^1225241752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225241752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1384617600).

1225241752 is an abundant number, since it is smaller than the sum of its proper divisors (1543993448).

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

1225241752 is a wasteful number, since it uses less digits than its factorization.

1225241752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2336 (or 2332 counting only the distinct ones).

The product of its digits is 11200, while the sum is 31.

The square root of 1225241752 is about 35003.4534296261. The cubic root of 1225241752 is about 1070.0578627689.

Adding to 1225241752 its reverse (2571425221), we get a palindrome (3796666973).

The spelling of 1225241752 in words is "one billion, two hundred twenty-five million, two hundred forty-one thousand, seven hundred fifty-two".