1329995113 has 4 divisors (see below), whose sum is σ = 1332608580. Its totient is φ = 1327381648.

The previous prime is 1329995111. The next prime is 1329995123. The reversal of 1329995113 is 3115999231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3115999231 = 647 ⋅4816073.

It can be written as a sum of positive squares in 2 ways, for example, as 1089528064 + 240467049 = 33008^2 + 15507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1329995113 - 2¹ = 1329995111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1329995113.

It is not an unprimeable number, because it can be changed into a prime (1329995111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1305970 + ... + 1306987.

It is an arithmetic number, because the mean of its divisors is an integer number (333152145).

Almost surely, 2^1329995113 is an apocalyptic number.

It is an amenable number.

1329995113 is a deficient number, since it is larger than the sum of its proper divisors (2613467).

1329995113 is an equidigital number, since it uses as much as digits as its factorization.

1329995113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613466.

The product of its digits is 65610, while the sum is 43.

The square root of 1329995113 is about 36469.0980557513. The cubic root of 1329995113 is about 1099.7231019289.

The spelling of 1329995113 in words is "one billion, three hundred twenty-nine million, nine hundred ninety-five thousand, one hundred thirteen".