1248859312 has 20 divisors (see below), whose sum is σ = 2421375280. Its totient is φ = 623988288.

The previous prime is 1248859307. The next prime is 1248859319. The reversal of 1248859312 is 2139588421.

It is a super-2 number, since 2×1248859312² = 3119299162338226688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1248859319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3612 + ... + 50107.

It is an arithmetic number, because the mean of its divisors is an integer number (121068764).

Almost surely, 2^1248859312 is an apocalyptic number.

It is an amenable number.

1248859312 is a deficient number, since it is larger than the sum of its proper divisors (1172515968).

1248859312 is a wasteful number, since it uses less digits than its factorization.

1248859312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55180 (or 55174 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 1248859312 is about 35339.2036129848. The cubic root of 1248859312 is about 1076.8895735867.

The spelling of 1248859312 in words is "one billion, two hundred forty-eight million, eight hundred fifty-nine thousand, three hundred twelve".