421133143 has 8 divisors (see below), whose sum is σ = 425115648. Its totient is φ = 417161304.

The previous prime is 421133107. The next prime is 421133147. The reversal of 421133143 is 341331124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421133143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421133147) 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, 92130 + ... + 96592.

It is an arithmetic number, because the mean of its divisors is an integer number (53139456).

Almost surely, 2^421133143 is an apocalyptic number.

421133143 is a deficient number, since it is larger than the sum of its proper divisors (3982505).

421133143 is a wasteful number, since it uses less digits than its factorization.

421133143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5333.

The product of its digits is 864, while the sum is 22.

The square root of 421133143 is about 20521.5287685884. The cubic root of 421133143 is about 749.5601230986.

Adding to 421133143 its reverse (341331124), we get a palindrome (762464267).

The spelling of 421133143 in words is "four hundred twenty-one million, one hundred thirty-three thousand, one hundred forty-three".