1248118065 has 40 divisors (see below), whose sum is σ = 2240587008. Its totient is φ = 664705440.

The previous prime is 1248118051. The next prime is 1248118099. The reversal of 1248118065 is 5608118421.

It is not a de Polignac number, because 1248118065 - 2⁹ = 1248117553 is a prime.

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 39 ways as a sum of consecutive naturals, for example, 347730 + ... + 351300.

Almost surely, 2^1248118065 is an apocalyptic number.

1248118065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1248118065 is a deficient number, since it is larger than the sum of its proper divisors (992468943).

1248118065 is an equidigital number, since it uses as much as digits as its factorization.

1248118065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4451 (or 4442 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The square root of 1248118065 is about 35328.7144543925. The cubic root of 1248118065 is about 1076.6764726822.

The spelling of 1248118065 in words is "one billion, two hundred forty-eight million, one hundred eighteen thousand, sixty-five".