1248688799 has 4 divisors (see below), whose sum is σ = 1249106520. Its totient is φ = 1248271080.

The previous prime is 1248688789. The next prime is 1248688843. The reversal of 1248688799 is 9978868421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9978868421 = 67511 ⋅147811.

It is a cyclic number.

It is not a de Polignac number, because 1248688799 - 2⁴ = 1248688783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248688729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204344 + ... + 210365.

It is an arithmetic number, because the mean of its divisors is an integer number (312276630).

Almost surely, 2^1248688799 is an apocalyptic number.

1248688799 is a deficient number, since it is larger than the sum of its proper divisors (417721).

1248688799 is an equidigital number, since it uses as much as digits as its factorization.

1248688799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417720.

The product of its digits is 13934592, while the sum is 62.

The square root of 1248688799 is about 35336.7910116355. The cubic root of 1248688799 is about 1076.8405603184.

The spelling of 1248688799 in words is "one billion, two hundred forty-eight million, six hundred eighty-eight thousand, seven hundred ninety-nine".