180840307 has 2 divisors, whose sum is σ = 180840308. Its totient is φ = 180840306.

The previous prime is 180840277. The next prime is 180840311. The reversal of 180840307 is 703048081.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-180840307 is a prime.

It is not a weakly prime, because it can be changed into another prime (180840367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90420153 + 90420154.

It is an arithmetic number, because the mean of its divisors is an integer number (90420154).

Almost surely, 2^180840307 is an apocalyptic number.

180840307 is a deficient number, since it is larger than the sum of its proper divisors (1).

180840307 is an equidigital number, since it uses as much as digits as its factorization.

180840307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 180840307 is about 13447.6877938179. The cubic root of 180840307 is about 565.4988749113.

Adding to 180840307 its reverse (703048081), we get a palindrome (883888388).

The spelling of 180840307 in words is "one hundred eighty million, eight hundred forty thousand, three hundred seven".