1303165 has 8 divisors (see below), whose sum is σ = 1571328. Its totient is φ = 1037520.

The previous prime is 1303163. The next prime is 1303171. The reversal of 1303165 is 5613031.

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

It is not a de Polignac number, because 1303165 - 2¹ = 1303163 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303163) 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 7 ways as a sum of consecutive naturals, for example, 820 + ... + 1810.

It is an arithmetic number, because the mean of its divisors is an integer number (196416).

2^1303165 is an apocalyptic number.

It is an amenable number.

1303165 is a deficient number, since it is larger than the sum of its proper divisors (268163).

1303165 is an equidigital number, since it uses as much as digits as its factorization.

1303165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1303165 is about 1141.5625256638. The cubic root of 1303165 is about 109.2277872547.

Adding to 1303165 its reverse (5613031), we get a palindrome (6916196).

It can be divided in two parts, 130316 and 5, that added together give a 4-th power (130321 = 19⁴).

The spelling of 1303165 in words is "one million, three hundred three thousand, one hundred sixty-five".