18147853 has 2 divisors, whose sum is σ = 18147854. Its totient is φ = 18147852.

The previous prime is 18147847. The next prime is 18147859. The reversal of 18147853 is 35874181.

It is a balanced prime because it is at equal distance from previous prime (18147847) and next prime (18147859).

It can be written as a sum of positive squares in only one way, i.e., 15264649 + 2883204 = 3907^2 + 1698^2 .

It is a cyclic number.

It is not a de Polignac number, because 18147853 - 2¹⁷ = 18016781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18147859) 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, 9073926 + 9073927.

It is an arithmetic number, because the mean of its divisors is an integer number (9073927).

Almost surely, 2^18147853 is an apocalyptic number.

It is an amenable number.

18147853 is a deficient number, since it is larger than the sum of its proper divisors (1).

18147853 is an equidigital number, since it uses as much as digits as its factorization.

18147853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26880, while the sum is 37.

The square root of 18147853 is about 4260.0296947322. The cubic root of 18147853 is about 262.7897474816.

The spelling of 18147853 in words is "eighteen million, one hundred forty-seven thousand, eight hundred fifty-three".