1165262472 has 144 divisors (see below), whose sum is σ = 3559785840. Its totient is φ = 341496000.

The previous prime is 1165262453. The next prime is 1165262473. The reversal of 1165262472 is 2742625611.

It is a happy number.

1165262472 is a `hidden beast` number, since 1 + 165 + 26 + 2 + 472 = 666.

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 (1165262473) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 760347 + ... + 761877.

It is an arithmetic number, because the mean of its divisors is an integer number (24720735).

Almost surely, 2^1165262472 is an apocalyptic number.

1165262472 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 1165262472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1779892920).

1165262472 is an abundant number, since it is smaller than the sum of its proper divisors (2394523368).

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

1165262472 is a wasteful number, since it uses less digits than its factorization.

1165262472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616 (or 1578 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 1165262472 is about 34135.9410592414. The cubic root of 1165262472 is about 1052.3040777413.

The spelling of 1165262472 in words is "one billion, one hundred sixty-five million, two hundred sixty-two thousand, four hundred seventy-two".