233420143 has 8 divisors (see below), whose sum is σ = 255191040. Its totient is φ = 211741080.

The previous prime is 233420141. The next prime is 233420147. The reversal of 233420143 is 341024332.

It is a happy number.

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 233420143 - 2¹ = 233420141 is a prime.

It is a super-4 number, since 4×233420143⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233420141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17583 + ... + 27856.

It is an arithmetic number, because the mean of its divisors is an integer number (31898880).

Almost surely, 2^233420143 is an apocalyptic number.

233420143 is a deficient number, since it is larger than the sum of its proper divisors (21770897).

233420143 is a wasteful number, since it uses less digits than its factorization.

233420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45917.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 233420143 is about 15278.0935656253. The cubic root of 233420143 is about 615.7145883278.

Adding to 233420143 its reverse (341024332), we get a palindrome (574444475).

The spelling of 233420143 in words is "two hundred thirty-three million, four hundred twenty thousand, one hundred forty-three".