1248512208 has 80 divisors (see below), whose sum is σ = 3279194880. Its totient is φ = 409264128.

The previous prime is 1248512191. The next prime is 1248512323. The reversal of 1248512208 is 8022158421.

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, 1277416 + ... + 1278392.

It is an arithmetic number, because the mean of its divisors is an integer number (40989936).

Almost surely, 2^1248512208 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 1248512208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639597440).

1248512208 is an abundant number, since it is smaller than the sum of its proper divisors (2030682672).

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

1248512208 is a wasteful number, since it uses less digits than its factorization.

With its successor (1248512209) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1398).

With its successor (1248512209) it forms an eRAP, since the sums of their prime factors are consecutive (1404 and 1405).

1248512208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 1248512208 is about 35334.2922385605. The cubic root of 1248512208 is about 1076.7897952502.

The spelling of 1248512208 in words is "one billion, two hundred forty-eight million, five hundred twelve thousand, two hundred eight".