1248775283 has 4 divisors (see below), whose sum is σ = 1427171760. Its totient is φ = 1070378808.

The previous prime is 1248775277. The next prime is 1248775309. The reversal of 1248775283 is 3825778421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3825778421 = 19 ⋅201356759.

It is a cyclic number.

It is not a de Polignac number, because 1248775283 - 2⁴ = 1248775267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1248775223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89198228 + ... + 89198241.

It is an arithmetic number, because the mean of its divisors is an integer number (356792940).

Almost surely, 2^1248775283 is an apocalyptic number.

1248775283 is a deficient number, since it is larger than the sum of its proper divisors (178396477).

1248775283 is an equidigital number, since it uses as much as digits as its factorization.

1248775283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178396476.

The product of its digits is 752640, while the sum is 47.

The square root of 1248775283 is about 35338.0147008855. The cubic root of 1248775283 is about 1076.8654203500.

The spelling of 1248775283 in words is "one billion, two hundred forty-eight million, seven hundred seventy-five thousand, two hundred eighty-three".