143045194 has 4 divisors (see below), whose sum is σ = 214567794. Its totient is φ = 71522596.

The previous prime is 143045171. The next prime is 143045209. The reversal of 143045194 is 491540341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 491540341 = 67 ⋅7336423.

It can be written as a sum of positive squares in only one way, i.e., 111830625 + 31214569 = 10575^2 + 5587^2 .

It is an unprimeable number.

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, 35761297 + ... + 35761300.

Almost surely, 2^143045194 is an apocalyptic number.

143045194 is a deficient number, since it is larger than the sum of its proper divisors (71522600).

143045194 is an equidigital number, since it uses as much as digits as its factorization.

143045194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71522599.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 143045194 is about 11960.1502498923. The cubic root of 143045194 is about 522.9872368736.

The spelling of 143045194 in words is "one hundred forty-three million, forty-five thousand, one hundred ninety-four".