143438141 has 20 divisors (see below), whose sum is σ = 182580384. Its totient is φ = 111749400.

The previous prime is 143438123. The next prime is 143438171. The reversal of 143438141 is 141834341.

It is a happy number.

It is not a de Polignac number, because 143438141 - 2⁶ = 143438077 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143438171) 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 19 ways as a sum of consecutive naturals, for example, 23696 + ... + 29126.

Almost surely, 2^143438141 is an apocalyptic number.

143438141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

143438141 is a deficient number, since it is larger than the sum of its proper divisors (39142243).

143438141 is an frugal number, since it uses more digits than its factorization.

143438141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470 (or 5449 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

The square root of 143438141 is about 11976.5663276250. The cubic root of 143438141 is about 523.4656832782.

The spelling of 143438141 in words is "one hundred forty-three million, four hundred thirty-eight thousand, one hundred forty-one".