1145647608 has 64 divisors (see below), whose sum is σ = 3283887360. Its totient is φ = 326267136.

The previous prime is 1145647603. The next prime is 1145647627. The reversal of 1145647608 is 8067465411.

It is a super-2 number, since 2×1145647608² = 2625016883432243328, which contains 22 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1145647608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145647603) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 41691 + ... + 63477.

It is an arithmetic number, because the mean of its divisors is an integer number (51310740).

Almost surely, 2^1145647608 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 1145647608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1641943680).

1145647608 is an abundant number, since it is smaller than the sum of its proper divisors (2138239752).

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

1145647608 is a wasteful number, since it uses less digits than its factorization.

1145647608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22116 (or 22112 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 1145647608 is about 33847.4165631588. The cubic root of 1145647608 is about 1046.3661559465.

The spelling of 1145647608 in words is "one billion, one hundred forty-five million, six hundred forty-seven thousand, six hundred eight".