183819121 has 2 divisors, whose sum is σ = 183819122. Its totient is φ = 183819120.

The previous prime is 183819101. The next prime is 183819131. The reversal of 183819121 is 121918381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108910096 + 74909025 = 10436^2 + 8655^2 .

It is a cyclic number.

It is not a de Polignac number, because 183819121 - 2⁵ = 183819089 is a prime.

It is not a weakly prime, because it can be changed into another prime (183819101) 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, 91909560 + 91909561.

It is an arithmetic number, because the mean of its divisors is an integer number (91909561).

Almost surely, 2^183819121 is an apocalyptic number.

It is an amenable number.

183819121 is a deficient number, since it is larger than the sum of its proper divisors (1).

183819121 is an equidigital number, since it uses as much as digits as its factorization.

183819121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 34.

The square root of 183819121 is about 13557.9910384983. The cubic root of 183819121 is about 568.5869595702.

The spelling of 183819121 in words is "one hundred eighty-three million, eight hundred nineteen thousand, one hundred twenty-one".