1248770005 has 16 divisors (see below), whose sum is σ = 1754371584. Its totient is φ = 835413120.

The previous prime is 1248769999. The next prime is 1248770123. The reversal of 1248770005 is 5000778421.

It is a happy number.

It is not a de Polignac number, because 1248770005 - 2⁷ = 1248769877 is a prime.

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, 433677 + ... + 436546.

It is an arithmetic number, because the mean of its divisors is an integer number (109648224).

Almost surely, 2^1248770005 is an apocalyptic number.

It is an amenable number.

1248770005 is a deficient number, since it is larger than the sum of its proper divisors (505601579).

1248770005 is an equidigital number, since it uses as much as digits as its factorization.

1248770005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870276.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 1248770005 is about 35337.9400220217. The cubic root of 1248770005 is about 1076.8639032093.

The spelling of 1248770005 in words is "one billion, two hundred forty-eight million, seven hundred seventy thousand, five".