235144135 has 4 divisors (see below), whose sum is σ = 282172968. Its totient is φ = 188115304.

The previous prime is 235144127. The next prime is 235144193. The reversal of 235144135 is 531441532.

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 235144135 - 2³ = 235144127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23514409 + ... + 23514418.

It is an arithmetic number, because the mean of its divisors is an integer number (70543242).

Almost surely, 2^235144135 is an apocalyptic number.

235144135 is a deficient number, since it is larger than the sum of its proper divisors (47028833).

235144135 is an equidigital number, since it uses as much as digits as its factorization.

235144135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47028832.

The product of its digits is 7200, while the sum is 28.

The square root of 235144135 is about 15334.4101614637. The cubic root of 235144135 is about 617.2267177365.

Adding to 235144135 its reverse (531441532), we get a palindrome (766585667).

The spelling of 235144135 in words is "two hundred thirty-five million, one hundred forty-four thousand, one hundred thirty-five".