168003853 has 2 divisors, whose sum is σ = 168003854. Its totient is φ = 168003852.

The previous prime is 168003827. The next prime is 168003859. The reversal of 168003853 is 358300861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113273449 + 54730404 = 10643^2 + 7398^2 .

It is a cyclic number.

It is not a de Polignac number, because 168003853 - 2¹³ = 167995661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168003859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84001926 + 84001927.

It is an arithmetic number, because the mean of its divisors is an integer number (84001927).

Almost surely, 2^168003853 is an apocalyptic number.

It is an amenable number.

168003853 is a deficient number, since it is larger than the sum of its proper divisors (1).

168003853 is an equidigital number, since it uses as much as digits as its factorization.

168003853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 168003853 is about 12961.6300286654. The cubic root of 168003853 is about 551.7890535515.

The spelling of 168003853 in words is "one hundred sixty-eight million, three thousand, eight hundred fifty-three".