1290328147 has 2 divisors, whose sum is σ = 1290328148. Its totient is φ = 1290328146.

The previous prime is 1290328031. The next prime is 1290328163. The reversal of 1290328147 is 7418230921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1290328147 - 2¹¹ = 1290326099 is a prime.

It is not a weakly prime, because it can be changed into another prime (1290328447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645164073 + 645164074.

It is an arithmetic number, because the mean of its divisors is an integer number (645164074).

Almost surely, 2^1290328147 is an apocalyptic number.

1290328147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290328147 is an equidigital number, since it uses as much as digits as its factorization.

1290328147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1290328147 is about 35921.1378856517. The cubic root of 1290328147 is about 1088.6795296674.

The spelling of 1290328147 in words is "one billion, two hundred ninety million, three hundred twenty-eight thousand, one hundred forty-seven".