1248763834 has 4 divisors (see below), whose sum is σ = 1873145754. Its totient is φ = 624381916.

The previous prime is 1248763811. The next prime is 1248763843. The reversal of 1248763834 is 4383678421.

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

It can be written as a sum of positive squares in only one way, i.e., 1247855625 + 908209 = 35325^2 + 953^2 .

It is a super-3 number, since 3×1248763834³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 as a sum of consecutive naturals, namely, 312190957 + ... + 312190960.

Almost surely, 2^1248763834 is an apocalyptic number.

1248763834 is a deficient number, since it is larger than the sum of its proper divisors (624381920).

1248763834 is an equidigital number, since it uses as much as digits as its factorization.

1248763834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624381919.

The product of its digits is 774144, while the sum is 46.

The square root of 1248763834 is about 35337.8527078259. The cubic root of 1248763834 is about 1076.8621293737.

The spelling of 1248763834 in words is "one billion, two hundred forty-eight million, seven hundred sixty-three thousand, eight hundred thirty-four".