235420145 has 4 divisors (see below), whose sum is σ = 282504180. Its totient is φ = 188336112.

The previous prime is 235420123. The next prime is 235420153. The reversal of 235420145 is 541024532.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 168065296 + 67354849 = 12964^2 + 8207^2 .

It is a cyclic number.

It is not a de Polignac number, because 235420145 - 2⁸ = 235419889 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23542010 + ... + 23542019.

It is an arithmetic number, because the mean of its divisors is an integer number (70626045).

Almost surely, 2^235420145 is an apocalyptic number.

It is an amenable number.

235420145 is a deficient number, since it is larger than the sum of its proper divisors (47084035).

235420145 is an equidigital number, since it uses as much as digits as its factorization.

235420145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47084034.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 235420145 is about 15343.4072161303. The cubic root of 235420145 is about 617.4681216367.

Adding to 235420145 its reverse (541024532), we get a palindrome (776444677).

The spelling of 235420145 in words is "two hundred thirty-five million, four hundred twenty thousand, one hundred forty-five".