168143534 has 16 divisors (see below), whose sum is σ = 277397568. Its totient is φ = 75952992.

The previous prime is 168143533. The next prime is 168143557. The reversal of 168143534 is 435341861.

168143534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 168143494 and 168143503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168143533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67577 + ... + 70020.

It is an arithmetic number, because the mean of its divisors is an integer number (17337348).

Almost surely, 2^168143534 is an apocalyptic number.

168143534 is a deficient number, since it is larger than the sum of its proper divisors (109254034).

168143534 is a wasteful number, since it uses less digits than its factorization.

168143534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137659.

The product of its digits is 34560, while the sum is 35.

The square root of 168143534 is about 12967.0171589306. The cubic root of 168143534 is about 551.9419331729.

The spelling of 168143534 in words is "one hundred sixty-eight million, one hundred forty-three thousand, five hundred thirty-four".