1165361163 has 8 divisors (see below), whose sum is σ = 1591712976. Its totient is φ = 757958400.

The previous prime is 1165361147. The next prime is 1165361167. The reversal of 1165361163 is 3611635611.

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

It is not a de Polignac number, because 1165361163 - 2⁴ = 1165361147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1165361167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4737118 + ... + 4737363.

It is an arithmetic number, because the mean of its divisors is an integer number (198964122).

Almost surely, 2^1165361163 is an apocalyptic number.

1165361163 is a deficient number, since it is larger than the sum of its proper divisors (426351813).

1165361163 is an equidigital number, since it uses as much as digits as its factorization.

1165361163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9474525.

The product of its digits is 9720, while the sum is 33.

The square root of 1165361163 is about 34137.3865871423. The cubic root of 1165361163 is about 1052.3337849281. Note that the first 3 decimals are identical.

Adding to 1165361163 its reverse (3611635611), we get a palindrome (4776996774).

The spelling of 1165361163 in words is "one billion, one hundred sixty-five million, three hundred sixty-one thousand, one hundred sixty-three".