1165383072 has 144 divisors (see below), whose sum is σ = 3954121920. Its totient is φ = 332954496.

The previous prime is 1165383071. The next prime is 1165383073. The reversal of 1165383072 is 2703835611.

1165383072 is a `hidden beast` number, since 116 + 538 + 3 + 0 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1165383071) and next prime (1165383073).

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (1165383071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28573 + ... + 56099.

It is an arithmetic number, because the mean of its divisors is an integer number (27459180).

Almost surely, 2^1165383072 is an apocalyptic number.

1165383072 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 1165383072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1977060960).

1165383072 is an abundant number, since it is smaller than the sum of its proper divisors (2788738848).

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

1165383072 is a wasteful number, since it uses less digits than its factorization.

1165383072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27560 (or 27539 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1165383072 is about 34137.7074801458. The cubic root of 1165383072 is about 1052.3403795751.

The spelling of 1165383072 in words is "one billion, one hundred sixty-five million, three hundred eighty-three thousand, seventy-two".