143194161 has 8 divisors (see below), whose sum is σ = 208282464. Its totient is φ = 86784320.

The previous prime is 143194157. The next prime is 143194187. The reversal of 143194161 is 161491341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143194161 - 2² = 143194157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143194361) 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 in 7 ways as a sum of consecutive naturals, for example, 2169576 + ... + 2169641.

It is an arithmetic number, because the mean of its divisors is an integer number (26035308).

Almost surely, 2^143194161 is an apocalyptic number.

143194161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143194161 is a deficient number, since it is larger than the sum of its proper divisors (65088303).

143194161 is a wasteful number, since it uses less digits than its factorization.

143194161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339231.

The product of its digits is 2592, while the sum is 30.

The square root of 143194161 is about 11966.3762685284. The cubic root of 143194161 is about 523.1687198693.

The spelling of 143194161 in words is "one hundred forty-three million, one hundred ninety-four thousand, one hundred sixty-one".