143480421 has 24 divisors (see below), whose sum is σ = 240200064. Its totient is φ = 80831520.

The previous prime is 143480411. The next prime is 143480437. The reversal of 143480421 is 124084341.

143480421 is a `hidden beast` number, since 143 + 480 + 42 + 1 = 666.

It is not a de Polignac number, because 143480421 - 2⁹ = 143479909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143480401) 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 23 ways as a sum of consecutive naturals, for example, 11566 + ... + 20511.

It is an arithmetic number, because the mean of its divisors is an integer number (10008336).

Almost surely, 2^143480421 is an apocalyptic number.

It is an amenable number.

143480421 is a deficient number, since it is larger than the sum of its proper divisors (96719643).

143480421 is a wasteful number, since it uses less digits than its factorization.

143480421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32161 (or 32158 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 143480421 is about 11978.3313111635. The cubic root of 143480421 is about 523.5171106850.

The spelling of 143480421 in words is "one hundred forty-three million, four hundred eighty thousand, four hundred twenty-one".