1251048832 has 64 divisors (see below), whose sum is σ = 2734477200. Its totient is φ = 565401600.

The previous prime is 1251048829. The next prime is 1251048833. The reversal of 1251048832 is 2388401521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251048833) 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 7 ways as a sum of consecutive naturals, for example, 252394 + ... + 257302.

Almost surely, 2^1251048832 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 1251048832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367238600).

1251048832 is an abundant number, since it is smaller than the sum of its proper divisors (1483428368).

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

1251048832 is a wasteful number, since it uses less digits than its factorization.

1251048832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115 (or 5103 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 1251048832 is about 35370.1686736153. The cubic root of 1251048832 is about 1077.5185461285.

The spelling of 1251048832 in words is "one billion, two hundred fifty-one million, forty-eight thousand, eight hundred thirty-two".