18845941 has 2 divisors, whose sum is σ = 18845942. Its totient is φ = 18845940.

The previous prime is 18845921. The next prime is 18845951. The reversal of 18845941 is 14954881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17514225 + 1331716 = 4185^2 + 1154^2 .

It is a cyclic number.

It is not a de Polignac number, because 18845941 - 2⁵ = 18845909 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18845894 and 18845903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18845921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9422970 + 9422971.

It is an arithmetic number, because the mean of its divisors is an integer number (9422971).

Almost surely, 2^18845941 is an apocalyptic number.

It is an amenable number.

18845941 is a deficient number, since it is larger than the sum of its proper divisors (1).

18845941 is an equidigital number, since it uses as much as digits as its factorization.

18845941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 40.

The square root of 18845941 is about 4341.1911959738. The cubic root of 18845941 is about 266.1169939685.

The spelling of 18845941 in words is "eighteen million, eight hundred forty-five thousand, nine hundred forty-one".