1329159197 has 24 divisors (see below), whose sum is σ = 1416796920. Its totient is φ = 1245995520.

The previous prime is 1329159191. The next prime is 1329159203. The reversal of 1329159197 is 7919519231.

It is an interprime number because it is at equal distance from previous prime (1329159191) and next prime (1329159203).

It can be written as a sum of positive squares in 4 ways, for example, as 91948921 + 1237210276 = 9589^2 + 35174^2 .

It is not a de Polignac number, because 1329159197 - 2⁶ = 1329159133 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 (1329159191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6746903 + ... + 6747099.

It is an arithmetic number, because the mean of its divisors is an integer number (59033205).

Almost surely, 2^1329159197 is an apocalyptic number.

It is an amenable number.

1329159197 is a deficient number, since it is larger than the sum of its proper divisors (87637723).

1329159197 is an equidigital number, since it uses as much as digits as its factorization.

1329159197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413 (or 370 counting only the distinct ones).

The product of its digits is 153090, while the sum is 47.

The square root of 1329159197 is about 36457.6356474196. The cubic root of 1329159197 is about 1099.4926577750.

The spelling of 1329159197 in words is "one billion, three hundred twenty-nine million, one hundred fifty-nine thousand, one hundred ninety-seven".