18833141 has 2 divisors, whose sum is σ = 18833142. Its totient is φ = 18833140.

The previous prime is 18833131. The next prime is 18833147. The reversal of 18833141 is 14133881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 2390116 = 4055^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 18833141 - 2⁶ = 18833077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18833147) 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, 9416570 + 9416571.

It is an arithmetic number, because the mean of its divisors is an integer number (9416571).

Almost surely, 2^18833141 is an apocalyptic number.

It is an amenable number.

18833141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18833141 is an equidigital number, since it uses as much as digits as its factorization.

18833141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 29.

The square root of 18833141 is about 4339.7166958224. The cubic root of 18833141 is about 266.0567322037.

The spelling of 18833141 in words is "eighteen million, eight hundred thirty-three thousand, one hundred forty-one".