1165372763 has 8 divisors (see below), whose sum is σ = 1287573408. Its totient is φ = 1049133184.

The previous prime is 1165372759. The next prime is 1165372783. The reversal of 1165372763 is 3672735611.

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 1165372763 - 2² = 1165372759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1165372763.

It is not an unprimeable number, because it can be changed into a prime (1165372783) 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 7 ways as a sum of consecutive naturals, for example, 1489856 + ... + 1490637.

It is an arithmetic number, because the mean of its divisors is an integer number (160946676).

Almost surely, 2^1165372763 is an apocalyptic number.

1165372763 is a deficient number, since it is larger than the sum of its proper divisors (122200645).

1165372763 is a wasteful number, since it uses less digits than its factorization.

1165372763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980533.

The product of its digits is 158760, while the sum is 41.

The square root of 1165372763 is about 34137.5564884190. The cubic root of 1165372763 is about 1052.3372765585.

The spelling of 1165372763 in words is "one billion, one hundred sixty-five million, three hundred seventy-two thousand, seven hundred sixty-three".