1330147729 has 2 divisors, whose sum is σ = 1330147730. Its totient is φ = 1330147728.

The previous prime is 1330147697. The next prime is 1330147751. The reversal of 1330147729 is 9277410331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 796537729 + 533610000 = 28223^2 + 23100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330147729 - 2⁵ = 1330147697 is a prime.

It is not a weakly prime, because it can be changed into another prime (1330147229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665073864 + 665073865.

It is an arithmetic number, because the mean of its divisors is an integer number (665073865).

Almost surely, 2^1330147729 is an apocalyptic number.

It is an amenable number.

1330147729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330147729 is an equidigital number, since it uses as much as digits as its factorization.

1330147729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 1330147729 is about 36471.1903973534. The cubic root of 1330147729 is about 1099.7651644698.

The spelling of 1330147729 in words is "one billion, three hundred thirty million, one hundred forty-seven thousand, seven hundred twenty-nine".