18850541 has 2 divisors, whose sum is σ = 18850542. Its totient is φ = 18850540.

The previous prime is 18850523. The next prime is 18850543. The reversal of 18850541 is 14505881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14032516 + 4818025 = 3746^2 + 2195^2 .

It is a cyclic number.

It is not a de Polignac number, because 18850541 - 2¹⁸ = 18588397 is a prime.

Together with 18850543, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 18850498 and 18850507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18850543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9425270 + 9425271.

It is an arithmetic number, because the mean of its divisors is an integer number (9425271).

Almost surely, 2^18850541 is an apocalyptic number.

It is an amenable number.

18850541 is a deficient number, since it is larger than the sum of its proper divisors (1).

18850541 is an equidigital number, since it uses as much as digits as its factorization.

18850541 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 18850541 is about 4341.7209721492. The cubic root of 18850541 is about 266.1386438751.

It can be divided in two parts, 18850 and 541, that added together give a palindrome (19391).

The spelling of 18850541 in words is "eighteen million, eight hundred fifty thousand, five hundred forty-one".