1161335365 has 8 divisors (see below), whose sum is σ = 1475579160. Its totient is φ = 874417152.

The previous prime is 1161335327. The next prime is 1161335387. The reversal of 1161335365 is 5635331611.

It can be written as a sum of positive squares in 4 ways, for example, as 423289476 + 738045889 = 20574^2 + 27167^2 .

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 1161335365 - 2¹⁹ = 1160811077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161335365.

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, 6831300 + ... + 6831469.

It is an arithmetic number, because the mean of its divisors is an integer number (184447395).

Almost surely, 2^1161335365 is an apocalyptic number.

It is an amenable number.

1161335365 is a deficient number, since it is larger than the sum of its proper divisors (314243795).

1161335365 is a wasteful number, since it uses less digits than its factorization.

1161335365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13662791.

The product of its digits is 24300, while the sum is 34.

The square root of 1161335365 is about 34078.3709264395. The cubic root of 1161335365 is about 1051.1206070893.

Adding to 1161335365 its reverse (5635331611), we get a palindrome (6796666976).

The spelling of 1161335365 in words is "one billion, one hundred sixty-one million, three hundred thirty-five thousand, three hundred sixty-five".