1306180489 has 2 divisors, whose sum is σ = 1306180490. Its totient is φ = 1306180488.

The previous prime is 1306180483. The next prime is 1306180541. The reversal of 1306180489 is 9840816031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1214174025 + 92006464 = 34845^2 + 9592^2 .

It is an emirp because it is prime and its reverse (9840816031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1306180489 - 2⁷ = 1306180361 is a prime.

It is a super-2 number, since 2×1306180489² = 3412214939688558242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1306180483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653090244 + 653090245.

It is an arithmetic number, because the mean of its divisors is an integer number (653090245).

Almost surely, 2^1306180489 is an apocalyptic number.

It is an amenable number.

1306180489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306180489 is an equidigital number, since it uses as much as digits as its factorization.

1306180489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 1306180489 is about 36141.1190889270. The cubic root of 1306180489 is about 1093.1197241470.

The spelling of 1306180489 in words is "one billion, three hundred six million, one hundred eighty thousand, four hundred eighty-nine".