18854141 has 2 divisors, whose sum is σ = 18854142. Its totient is φ = 18854140.

The previous prime is 18854123. The next prime is 18854161. The reversal of 18854141 is 14145881.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10588516 + 8265625 = 3254^2 + 2875^2 .

It is a cyclic number.

It is not a de Polignac number, because 18854141 - 2¹⁸ = 18591997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18854098 and 18854107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18854161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9427070 + 9427071.

It is an arithmetic number, because the mean of its divisors is an integer number (9427071).

Almost surely, 2^18854141 is an apocalyptic number.

It is an amenable number.

18854141 is a deficient number, since it is larger than the sum of its proper divisors (1).

18854141 is an equidigital number, since it uses as much as digits as its factorization.

18854141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 32.

The square root of 18854141 is about 4342.1355345037. The cubic root of 18854141 is about 266.1555848236.

The spelling of 18854141 in words is "eighteen million, eight hundred fifty-four thousand, one hundred forty-one".