184010921 has 2 divisors, whose sum is σ = 184010922. Its totient is φ = 184010920.

The previous prime is 184010891. The next prime is 184010923. The reversal of 184010921 is 129010481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 70375321 = 10660^2 + 8389^2 .

It is an emirp because it is prime and its reverse (129010481) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-184010921 is a prime.

Together with 184010923, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (184010923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 92005460 + 92005461.

It is an arithmetic number, because the mean of its divisors is an integer number (92005461).

Almost surely, 2^184010921 is an apocalyptic number.

It is an amenable number.

184010921 is a deficient number, since it is larger than the sum of its proper divisors (1).

184010921 is an equidigital number, since it uses as much as digits as its factorization.

184010921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 184010921 is about 13565.0625136783. The cubic root of 184010921 is about 568.7846485996.

The spelling of 184010921 in words is "one hundred eighty-four million, ten thousand, nine hundred twenty-one".