1165207552 has 48 divisors (see below), whose sum is σ = 2392970580. Its totient is φ = 566820864.

The previous prime is 1165207541. The next prime is 1165207567. The reversal of 1165207552 is 2557025611.

It can be written as a sum of positive squares in 2 ways, for example, as 780420096 + 384787456 = 27936^2 + 19616^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68088 + ... + 83464.

Almost surely, 2^1165207552 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 1165207552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1196485290).

1165207552 is an abundant number, since it is smaller than the sum of its proper divisors (1227763028).

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

1165207552 is an equidigital number, since it uses as much as digits as its factorization.

1165207552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15436 (or 15416 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 1165207552 is about 34135.1366190323. The cubic root of 1165207552 is about 1052.2875454294.

The spelling of 1165207552 in words is "one billion, one hundred sixty-five million, two hundred seven thousand, five hundred fifty-two".