1248545412 has 72 divisors (see below), whose sum is σ = 3238050816. Its totient is φ = 405450624.

The previous prime is 1248545401. The next prime is 1248545449. The reversal of 1248545412 is 2145458421.

1248545412 is a `hidden beast` number, since 124 + 85 + 45 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 392653 + ... + 395819.

It is an arithmetic number, because the mean of its divisors is an integer number (44972928).

Almost surely, 2^1248545412 is an apocalyptic number.

1248545412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1248545412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619025408).

1248545412 is an abundant number, since it is smaller than the sum of its proper divisors (1989505404).

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

1248545412 is a wasteful number, since it uses less digits than its factorization.

1248545412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457 (or 3452 counting only the distinct ones).

The product of its digits is 51200, while the sum is 36.

The square root of 1248545412 is about 35334.7620906099. The cubic root of 1248545412 is about 1076.7993408547.

The spelling of 1248545412 in words is "one billion, two hundred forty-eight million, five hundred forty-five thousand, four hundred twelve".