184240813 has 2 divisors, whose sum is σ = 184240814. Its totient is φ = 184240812.

The previous prime is 184240783. The next prime is 184240907. The reversal of 184240813 is 318042481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178543044 + 5697769 = 13362^2 + 2387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-184240813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (184240013) 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, 92120406 + 92120407.

It is an arithmetic number, because the mean of its divisors is an integer number (92120407).

Almost surely, 2^184240813 is an apocalyptic number.

It is an amenable number.

184240813 is a deficient number, since it is larger than the sum of its proper divisors (1).

184240813 is an equidigital number, since it uses as much as digits as its factorization.

184240813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 184240813 is about 13573.5335487853. The cubic root of 184240813 is about 569.0214182858.

The spelling of 184240813 in words is "one hundred eighty-four million, two hundred forty thousand, eight hundred thirteen".