235221345 has 24 divisors (see below), whose sum is σ = 425445696. Its totient is φ = 119996448.

The previous prime is 235221281. The next prime is 235221361. The reversal of 235221345 is 543122532.

It is a happy number.

235221345 is a `hidden beast` number, since 2 + 3 + 522 + 134 + 5 = 666.

It is not a de Polignac number, because 235221345 - 2⁶ = 235221281 is a prime.

It is a super-2 number, since 2×235221345² = 110658162287218050, which contains 22 as substring.

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 23 ways as a sum of consecutive naturals, for example, 112599 + ... + 114668.

It is an arithmetic number, because the mean of its divisors is an integer number (17726904).

Almost surely, 2^235221345 is an apocalyptic number.

It is an amenable number.

235221345 is a deficient number, since it is larger than the sum of its proper divisors (190224351).

235221345 is a wasteful number, since it uses less digits than its factorization.

235221345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227301 (or 227298 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 235221345 is about 15336.9274954275. The cubic root of 235221345 is about 617.2942661785.

Adding to 235221345 its reverse (543122532), we get a palindrome (778343877).

The spelling of 235221345 in words is "two hundred thirty-five million, two hundred twenty-one thousand, three hundred forty-five".