1165135763 has 4 divisors (see below), whose sum is σ = 1271057208. Its totient is φ = 1059214320.

The previous prime is 1165135753. The next prime is 1165135831. The reversal of 1165135763 is 3675315611.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1165135763 - 2¹⁴ = 1165119379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1165135723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52960706 + ... + 52960727.

It is an arithmetic number, because the mean of its divisors is an integer number (317764302).

Almost surely, 2^1165135763 is an apocalyptic number.

1165135763 is a deficient number, since it is larger than the sum of its proper divisors (105921445).

1165135763 is a wasteful number, since it uses less digits than its factorization.

1165135763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105921444.

The product of its digits is 56700, while the sum is 38.

The square root of 1165135763 is about 34134.0850617092. The cubic root of 1165135763 is about 1052.2659343376.

The spelling of 1165135763 in words is "one billion, one hundred sixty-five million, one hundred thirty-five thousand, seven hundred sixty-three".