1331412165 has 12 divisors (see below), whose sum is σ = 2307781164. Its totient is φ = 710086464.

The previous prime is 1331412073. The next prime is 1331412191. The reversal of 1331412165 is 5612141331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 996412356 + 334999809 = 31566^2 + 18303^2 .

It is not a de Polignac number, because 1331412165 - 2⁷ = 1331412037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14793424 + ... + 14793513.

It is an arithmetic number, because the mean of its divisors is an integer number (192315097).

Almost surely, 2^1331412165 is an apocalyptic number.

1331412165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1331412165 is a deficient number, since it is larger than the sum of its proper divisors (976368999).

1331412165 is a wasteful number, since it uses less digits than its factorization.

1331412165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29586948 (or 29586945 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1331412165 is about 36488.5210031867. The cubic root of 1331412165 is about 1100.1135323589.

Adding to 1331412165 its reverse (5612141331), we get a palindrome (6943553496).

The spelling of 1331412165 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, one hundred sixty-five".