1330147789 has 4 divisors (see below), whose sum is σ = 1362590460. Its totient is φ = 1297705120.

The previous prime is 1330147757. The next prime is 1330147811. The reversal of 1330147789 is 9877410331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9877410331 = 43 ⋅229707217.

It can be written as a sum of positive squares in 2 ways, for example, as 788654889 + 541492900 = 28083^2 + 23270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330147789 - 2⁵ = 1330147757 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 (1330147729) 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, 16221274 + ... + 16221355.

It is an arithmetic number, because the mean of its divisors is an integer number (340647615).

Almost surely, 2^1330147789 is an apocalyptic number.

It is an amenable number.

1330147789 is a deficient number, since it is larger than the sum of its proper divisors (32442671).

1330147789 is an equidigital number, since it uses as much as digits as its factorization.

1330147789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32442670.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 1330147789 is about 36471.1912199204. The cubic root of 1330147789 is about 1099.7651810058.

The spelling of 1330147789 in words is "one billion, three hundred thirty million, one hundred forty-seven thousand, seven hundred eighty-nine".