143153421 has 4 divisors (see below), whose sum is σ = 190871232. Its totient is φ = 95435612.

The previous prime is 143153419. The next prime is 143153441. The reversal of 143153421 is 124351341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 143153421 - 2¹ = 143153419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 143153391 and 143153400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143153401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23858901 + ... + 23858906.

It is an arithmetic number, because the mean of its divisors is an integer number (47717808).

Almost surely, 2^143153421 is an apocalyptic number.

It is an amenable number.

143153421 is a deficient number, since it is larger than the sum of its proper divisors (47717811).

143153421 is an equidigital number, since it uses as much as digits as its factorization.

143153421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47717810.

The product of its digits is 1440, while the sum is 24.

The square root of 143153421 is about 11964.6738777118. The cubic root of 143153421 is about 523.1190997937.

The spelling of 143153421 in words is "one hundred forty-three million, one hundred fifty-three thousand, four hundred twenty-one".