1165332061 has 4 divisors (see below), whose sum is σ = 1174508032. Its totient is φ = 1156156092.

The previous prime is 1165332043. The next prime is 1165332079. The reversal of 1165332061 is 1602335611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1165332043) and next prime (1165332079).

It is a cyclic number.

It is not a de Polignac number, because 1165332061 - 2⁹ = 1165331549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165332011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587795 + ... + 4588048.

It is an arithmetic number, because the mean of its divisors is an integer number (293627008).

Almost surely, 2^1165332061 is an apocalyptic number.

It is an amenable number.

1165332061 is a deficient number, since it is larger than the sum of its proper divisors (9175971).

1165332061 is an equidigital number, since it uses as much as digits as its factorization.

1165332061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9175970.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1165332061 is about 34136.9603362690. The cubic root of 1165332061 is about 1052.3250250479.

Adding to 1165332061 its reverse (1602335611), we get a palindrome (2767667672).

The spelling of 1165332061 in words is "one billion, one hundred sixty-five million, three hundred thirty-two thousand, sixty-one".