1248136900 has 18 divisors (see below), whose sum is σ = 2708457290. Its totient is φ = 499254720.

The previous prime is 1248136871. The next prime is 1248136913. The reversal of 1248136900 is 96318421.

It can be written as a sum of positive squares in 3 ways, for example, as 8111104 + 1240025796 = 2848^2 + 35214^2 .

It is a super-2 number, since 2×1248136900² = 3115691442283220000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6240585 + ... + 6240784.

Almost surely, 2^1248136900 is an apocalyptic number.

1248136900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1248136900 is an abundant number, since it is smaller than the sum of its proper divisors (1460320390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1248136900 is a wasteful number, since it uses less digits than its factorization.

1248136900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12481383 (or 12481376 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1248136900 is about 35328.9810212522. The cubic root of 1248136900 is about 1076.6818885959.

The spelling of 1248136900 in words is "one billion, two hundred forty-eight million, one hundred thirty-six thousand, nine hundred".