1248288215 has 16 divisors (see below), whose sum is σ = 1518870528. Its totient is φ = 984767136.

The previous prime is 1248288199. The next prime is 1248288221. The reversal of 1248288215 is 5128828421.

It is a cyclic number.

It is not a de Polignac number, because 1248288215 - 2⁴ = 1248288199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 114074 + ... + 124536.

It is an arithmetic number, because the mean of its divisors is an integer number (94929408).

Almost surely, 2^1248288215 is an apocalyptic number.

1248288215 is a deficient number, since it is larger than the sum of its proper divisors (270582313).

1248288215 is a wasteful number, since it uses less digits than its factorization.

1248288215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10798.

The product of its digits is 81920, while the sum is 41.

The square root of 1248288215 is about 35331.1224701396. The cubic root of 1248288215 is about 1076.7253965201.

The spelling of 1248288215 in words is "one billion, two hundred forty-eight million, two hundred eighty-eight thousand, two hundred fifteen".