168145143 has 16 divisors (see below), whose sum is σ = 228068736. Its totient is φ = 110167200.

The previous prime is 168145127. The next prime is 168145177. The reversal of 168145143 is 341541861.

168145143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 168145143 - 2⁴ = 168145127 is a prime.

It is a super-2 number, since 2×168145143² = 56545578228980898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168145123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 128593 + ... + 129893.

It is an arithmetic number, because the mean of its divisors is an integer number (14254296).

Almost surely, 2^168145143 is an apocalyptic number.

168145143 is a deficient number, since it is larger than the sum of its proper divisors (59923593).

168145143 is a wasteful number, since it uses less digits than its factorization.

168145143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014.

The product of its digits is 11520, while the sum is 33.

The square root of 168145143 is about 12967.0792008069. The cubic root of 168145143 is about 551.9436937159.

The spelling of 168145143 in words is "one hundred sixty-eight million, one hundred forty-five thousand, one hundred forty-three".