1248983485 has 4 divisors (see below), whose sum is σ = 1498780188. Its totient is φ = 999186784.

The previous prime is 1248983471. The next prime is 1248983497. The reversal of 1248983485 is 5843898421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 394181316 + 854802169 = 19854^2 + 29237^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248983485 - 2⁵ = 1248983453 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 3 ways as a sum of consecutive naturals, for example, 124898344 + ... + 124898353.

It is an arithmetic number, because the mean of its divisors is an integer number (374695047).

Almost surely, 2^1248983485 is an apocalyptic number.

It is an amenable number.

1248983485 is a deficient number, since it is larger than the sum of its proper divisors (249796703).

1248983485 is an equidigital number, since it uses as much as digits as its factorization.

1248983485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249796702.

The product of its digits is 2211840, while the sum is 52.

The square root of 1248983485 is about 35340.9604425233. The cubic root of 1248983485 is about 1076.9252638031.

The spelling of 1248983485 in words is "one billion, two hundred forty-eight million, nine hundred eighty-three thousand, four hundred eighty-five".