1145791248 has 160 divisors (see below), whose sum is σ = 3578437632. Its totient is φ = 308966400.

The previous prime is 1145791223. The next prime is 1145791267. The reversal of 1145791248 is 8421975411.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 425715 + ... + 428397.

Almost surely, 2^1145791248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145791248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1789218816).

1145791248 is an abundant number, since it is smaller than the sum of its proper divisors (2432646384).

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

1145791248 is a wasteful number, since it uses less digits than its factorization.

1145791248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773 (or 2767 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 1145791248 is about 33849.5383720369. The cubic root of 1145791248 is about 1046.4098848536.

The spelling of 1145791248 in words is "one billion, one hundred forty-five million, seven hundred ninety-one thousand, two hundred forty-eight".