1329005125 has 16 divisors (see below), whose sum is σ = 1895542272. Its totient is φ = 911317200.

The previous prime is 1329005081. The next prime is 1329005131. The reversal of 1329005125 is 5215009231.

It is not a de Polignac number, because 1329005125 - 2⁷ = 1329004997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1329005093 and 1329005102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758557 + ... + 760306.

It is an arithmetic number, because the mean of its divisors is an integer number (118471392).

Almost surely, 2^1329005125 is an apocalyptic number.

It is an amenable number.

1329005125 is a deficient number, since it is larger than the sum of its proper divisors (566537147).

1329005125 is an equidigital number, since it uses as much as digits as its factorization.

1329005125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1518885 (or 1518875 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 1329005125 is about 36455.5225583176. The cubic root of 1329005125 is about 1099.4501728770.

The spelling of 1329005125 in words is "one billion, three hundred twenty-nine million, five thousand, one hundred twenty-five".