1248248306 has 4 divisors (see below), whose sum is σ = 1872372462. Its totient is φ = 624124152.

The previous prime is 1248248227. The next prime is 1248248327. The reversal of 1248248306 is 6038428421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6038428421 = 1433 ⋅4213837.

It can be written as a sum of positive squares in only one way, i.e., 1184392225 + 63856081 = 34415^2 + 7991^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1248248306.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312062075 + ... + 312062078.

Almost surely, 2^1248248306 is an apocalyptic number.

1248248306 is a deficient number, since it is larger than the sum of its proper divisors (624124156).

1248248306 is an equidigital number, since it uses as much as digits as its factorization.

1248248306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624124155.

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 1248248306 is about 35330.5576802858. The cubic root of 1248248306 is about 1076.7139217417.

The spelling of 1248248306 in words is "one billion, two hundred forty-eight million, two hundred forty-eight thousand, three hundred six".