1165723713 has 48 divisors (see below), whose sum is σ = 2102630400. Its totient is φ = 604614240.

The previous prime is 1165723693. The next prime is 1165723733. The reversal of 1165723713 is 3173275611.

1165723713 is a `hidden beast` number, since 1 + 16 + 572 + 3 + 71 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1165723693) and next prime (1165723733).

It is not a de Polignac number, because 1165723713 - 2⁶ = 1165723649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1165723733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 719218 + ... + 720836.

It is an arithmetic number, because the mean of its divisors is an integer number (43804800).

Almost surely, 2^1165723713 is an apocalyptic number.

It is an amenable number.

1165723713 is a deficient number, since it is larger than the sum of its proper divisors (936906687).

1165723713 is a wasteful number, since it uses less digits than its factorization.

1165723713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682 (or 2679 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 1165723713 is about 34142.6963346482. The cubic root of 1165723713 is about 1052.4429024756.

The spelling of 1165723713 in words is "one billion, one hundred sixty-five million, seven hundred twenty-three thousand, seven hundred thirteen".