143421101 has 8 divisors (see below), whose sum is σ = 151079520. Its totient is φ = 135773712.

The previous prime is 143421079. The next prime is 143421119. The reversal of 143421101 is 101124341.

It is a happy number.

143421101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 143421101 - 2²⁶ = 76312237 is a prime.

It is a super-2 number, since 2×143421101² = 41139224424104402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143421101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143421181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49766 + ... + 52568.

It is an arithmetic number, because the mean of its divisors is an integer number (18884940).

Almost surely, 2^143421101 is an apocalyptic number.

It is an amenable number.

143421101 is a deficient number, since it is larger than the sum of its proper divisors (7658419).

143421101 is a wasteful number, since it uses less digits than its factorization.

143421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5515.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 143421101 is about 11975.8549172909. The cubic root of 143421101 is about 523.4449537651. Note that the first 3 decimals are identical.

Adding to 143421101 its reverse (101124341), we get a palindrome (244545442).

The spelling of 143421101 in words is "one hundred forty-three million, four hundred twenty-one thousand, one hundred one".