1161365 has 8 divisors (see below), whose sum is σ = 1399680. Its totient is φ = 925072.

The previous prime is 1161343. The next prime is 1161371. The reversal of 1161365 is 5631611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1161365 - 2¹⁴ = 1144981 is a prime.

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 1161365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1472 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (174960).

2^1161365 is an apocalyptic number.

It is an amenable number.

1161365 is a deficient number, since it is larger than the sum of its proper divisors (238315).

1161365 is an equidigital number, since it uses as much as digits as its factorization.

1161365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011.

The product of its digits is 540, while the sum is 23.

The square root of 1161365 is about 1077.6664604598. Note that the first 3 decimals coincide. The cubic root of 1161365 is about 105.1129547858.

Adding to 1161365 its reverse (5631611), we get a palindrome (6792976).

The spelling of 1161365 in words is "one million, one hundred sixty-one thousand, three hundred sixty-five".