1248453803 has 4 divisors (see below), whose sum is σ = 1321892280. Its totient is φ = 1175015328.

The previous prime is 1248453781. The next prime is 1248453821. The reversal of 1248453803 is 3083548421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3083548421 = 12479 ⋅247099.

It is a cyclic number.

It is not a de Polignac number, because 1248453803 - 2²⁴ = 1231676587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248453853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36719213 + ... + 36719246.

It is an arithmetic number, because the mean of its divisors is an integer number (330473070).

Almost surely, 2^1248453803 is an apocalyptic number.

1248453803 is a deficient number, since it is larger than the sum of its proper divisors (73438477).

1248453803 is an equidigital number, since it uses as much as digits as its factorization.

1248453803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73438476.

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 1248453803 is about 35333.4657654751. The cubic root of 1248453803 is about 1076.7730043614.

The spelling of 1248453803 in words is "one billion, two hundred forty-eight million, four hundred fifty-three thousand, eight hundred three".