1328995107 has 20 divisors (see below), whose sum is σ = 2165771256. Its totient is φ = 805451040.

The previous prime is 1328995099. The next prime is 1328995139. The reversal of 1328995107 is 7015998231.

It is not a de Polignac number, because 1328995107 - 2³ = 1328995099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1328995007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 744898 + ... + 746679.

Almost surely, 2^1328995107 is an apocalyptic number.

1328995107 is a deficient number, since it is larger than the sum of its proper divisors (836776149).

1328995107 is a wasteful number, since it uses less digits than its factorization.

1328995107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491600 (or 1491591 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 1328995107 is about 36455.3851577514. The cubic root of 1328995107 is about 1099.4474103295.

The spelling of 1328995107 in words is "one billion, three hundred twenty-eight million, nine hundred ninety-five thousand, one hundred seven".