1145005316 has 48 divisors (see below), whose sum is σ = 2472516480. Its totient is φ = 451802880.

The previous prime is 1145005291. The next prime is 1145005321. The reversal of 1145005316 is 6135005411.

It is a super-2 number, since 2×1145005316² = 2622074347336519712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

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 15 ways as a sum of consecutive naturals, for example, 145031 + ... + 152721.

It is an arithmetic number, because the mean of its divisors is an integer number (51510760).

Almost surely, 2^1145005316 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 1145005316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1236258240).

1145005316 is an abundant number, since it is smaller than the sum of its proper divisors (1327511164).

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

1145005316 is a wasteful number, since it uses less digits than its factorization.

1145005316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8124 (or 8122 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1145005316 is about 33837.9271823792. The cubic root of 1145005316 is about 1046.1705756646.

The spelling of 1145005316 in words is "one billion, one hundred forty-five million, five thousand, three hundred sixteen".