10851165 has 56 divisors (see below), whose sum is σ = 21116760. Its totient is φ = 5318784.

The previous prime is 10851163. The next prime is 10851233. The reversal of 10851165 is 56115801.

It can be written as a sum of positive squares in 4 ways, for example, as 1542564 + 9308601 = 1242^2 + 3051^2 .

It is not a de Polignac number, because 10851165 - 2¹ = 10851163 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10851161) 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 55 ways as a sum of consecutive naturals, for example, 47271 + ... + 47499.

It is an arithmetic number, because the mean of its divisors is an integer number (377085).

Almost surely, 2^10851165 is an apocalyptic number.

10851165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10851165 is a deficient number, since it is larger than the sum of its proper divisors (10265595).

10851165 is an equidigital number, since it uses as much as digits as its factorization.

10851165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 27.

The square root of 10851165 is about 3294.1106538791. The cubic root of 10851165 is about 221.3904021221.

Adding to 10851165 its reverse (56115801), we get a palindrome (66966966).

The spelling of 10851165 in words is "ten million, eight hundred fifty-one thousand, one hundred sixty-five".