180282749 has 2 divisors, whose sum is σ = 180282750. Its totient is φ = 180282748.

The previous prime is 180282731. The next prime is 180282787. The reversal of 180282749 is 947282081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105719524 + 74563225 = 10282^2 + 8635^2 .

It is a cyclic number.

It is not a de Polignac number, because 180282749 - 2⁸ = 180282493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180282709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90141374 + 90141375.

It is an arithmetic number, because the mean of its divisors is an integer number (90141375).

Almost surely, 2^180282749 is an apocalyptic number.

It is an amenable number.

180282749 is a deficient number, since it is larger than the sum of its proper divisors (1).

180282749 is an equidigital number, since it uses as much as digits as its factorization.

180282749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 180282749 is about 13426.9411631987. The cubic root of 180282749 is about 564.9171037700.

The spelling of 180282749 in words is "one hundred eighty million, two hundred eighty-two thousand, seven hundred forty-nine".