184484981 has 2 divisors, whose sum is σ = 184484982. Its totient is φ = 184484980.

The previous prime is 184484977. The next prime is 184484983. The reversal of 184484981 is 189484481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120340900 + 64144081 = 10970^2 + 8009^2 .

It is a cyclic number.

It is not a de Polignac number, because 184484981 - 2² = 184484977 is a prime.

It is a super-2 number, since 2×184484981² = 68069416429140722, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 184484983, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (184484983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92242490 + 92242491.

It is an arithmetic number, because the mean of its divisors is an integer number (92242491).

Almost surely, 2^184484981 is an apocalyptic number.

It is an amenable number.

184484981 is a deficient number, since it is larger than the sum of its proper divisors (1).

184484981 is an equidigital number, since it uses as much as digits as its factorization.

184484981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 294912, while the sum is 47.

The square root of 184484981 is about 13582.5248389245. The cubic root of 184484981 is about 569.2726754828.

The spelling of 184484981 in words is "one hundred eighty-four million, four hundred eighty-four thousand, nine hundred eighty-one".