143140194 has 12 divisors (see below), whose sum is σ = 310137126. Its totient is φ = 47713392.

The previous prime is 143140183. The next prime is 143140229. The reversal of 143140194 is 491041341.

143140194 is a `hidden beast` number, since 1 + 431 + 40 + 194 = 666.

It can be written as a sum of positive squares in only one way, i.e., 131951169 + 11189025 = 11487^2 + 3345^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3976099 + ... + 3976134.

Almost surely, 2^143140194 is an apocalyptic number.

143140194 is an abundant number, since it is smaller than the sum of its proper divisors (166996932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143140194 is a wasteful number, since it uses less digits than its factorization.

143140194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7952241 (or 7952238 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 143140194 is about 11964.1211127270. The cubic root of 143140194 is about 523.1029876873.

The spelling of 143140194 in words is "one hundred forty-three million, one hundred forty thousand, one hundred ninety-four".