235442143 has 4 divisors (see below), whose sum is σ = 235855048. Its totient is φ = 235029240.

The previous prime is 235442107. The next prime is 235442149. The reversal of 235442143 is 341244532.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 235442143 - 2⁹ = 235441631 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 (235442149) 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, 205596 + ... + 206737.

It is an arithmetic number, because the mean of its divisors is an integer number (58963762).

Almost surely, 2^235442143 is an apocalyptic number.

235442143 is a deficient number, since it is larger than the sum of its proper divisors (412905).

235442143 is an equidigital number, since it uses as much as digits as its factorization.

235442143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412904.

The product of its digits is 11520, while the sum is 28.

The square root of 235442143 is about 15344.1240545037. The cubic root of 235442143 is about 617.4873534101.

Adding to 235442143 its reverse (341244532), we get a palindrome (576686675).

The spelling of 235442143 in words is "two hundred thirty-five million, four hundred forty-two thousand, one hundred forty-three".