1165532365 has 4 divisors (see below), whose sum is σ = 1398638844. Its totient is φ = 932425888.

The previous prime is 1165532339. The next prime is 1165532399. The reversal of 1165532365 is 5632355611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 704743209 + 460789156 = 26547^2 + 21466^2 .

It is a cyclic number.

It is not a de Polignac number, because 1165532365 - 2¹⁹ = 1165008077 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116553232 + ... + 116553241.

It is an arithmetic number, because the mean of its divisors is an integer number (349659711).

Almost surely, 2^1165532365 is an apocalyptic number.

It is an amenable number.

1165532365 is a deficient number, since it is larger than the sum of its proper divisors (233106479).

1165532365 is an equidigital number, since it uses as much as digits as its factorization.

1165532365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233106478.

The product of its digits is 81000, while the sum is 37.

The square root of 1165532365 is about 34139.8940390857. The cubic root of 1165532365 is about 1052.3853148265.

Adding to 1165532365 its reverse (5632355611), we get a palindrome (6797887976).

The spelling of 1165532365 in words is "one billion, one hundred sixty-five million, five hundred thirty-two thousand, three hundred sixty-five".