147163865 has 8 divisors (see below), whose sum is σ = 176894088. Its totient is φ = 117532800.

The previous prime is 147163853. The next prime is 147163871. The reversal of 147163865 is 568361741.

It can be written as a sum of positive squares in 4 ways, for example, as 7546009 + 139617856 = 2747^2 + 11816^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-147163865 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21482 + ... + 27491.

It is an arithmetic number, because the mean of its divisors is an integer number (22111761).

Almost surely, 2^147163865 is an apocalyptic number.

It is an amenable number.

147163865 is a deficient number, since it is larger than the sum of its proper divisors (29730223).

147163865 is an equidigital number, since it uses as much as digits as its factorization.

147163865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49579.

The product of its digits is 120960, while the sum is 41.

The square root of 147163865 is about 12131.1114494922. Note that the first 3 decimals coincide. The cubic root of 147163865 is about 527.9592400908.

It can be divided in two parts, 14716 and 3865, that added together give a palindrome (18581).

The spelling of 147163865 in words is "one hundred forty-seven million, one hundred sixty-three thousand, eight hundred sixty-five".