18041371 has 2 divisors, whose sum is σ = 18041372. Its totient is φ = 18041370.

The previous prime is 18041363. The next prime is 18041383. The reversal of 18041371 is 17314081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18041371 - 2³ = 18041363 is a prime.

It is not a weakly prime, because it can be changed into another prime (18041351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9020685 + 9020686.

It is an arithmetic number, because the mean of its divisors is an integer number (9020686).

Almost surely, 2^18041371 is an apocalyptic number.

18041371 is a deficient number, since it is larger than the sum of its proper divisors (1).

18041371 is an equidigital number, since it uses as much as digits as its factorization.

18041371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 18041371 is about 4247.5135079244. The cubic root of 18041371 is about 262.2747685548.

The spelling of 18041371 in words is "eighteen million, forty-one thousand, three hundred seventy-one".