1165267272 has 64 divisors (see below), whose sum is σ = 3151270080. Its totient is φ = 356942592.

The previous prime is 1165267253. The next prime is 1165267289. The reversal of 1165267272 is 2727625611.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1165267272.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62598 + ... + 79050.

It is an arithmetic number, because the mean of its divisors is an integer number (49238595).

Almost surely, 2^1165267272 is an apocalyptic number.

1165267272 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 1165267272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1575635040).

1165267272 is an abundant number, since it is smaller than the sum of its proper divisors (1986002808).

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

1165267272 is a wasteful number, since it uses less digits than its factorization.

1165267272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16702 (or 16698 counting only the distinct ones).

The product of its digits is 70560, while the sum is 39.

The square root of 1165267272 is about 34136.0113662976. The cubic root of 1165267272 is about 1052.3055226383.

The spelling of 1165267272 in words is "one billion, one hundred sixty-five million, two hundred sixty-seven thousand, two hundred seventy-two".