235045021 has 4 divisors (see below), whose sum is σ = 235237500. Its totient is φ = 234852544.

The previous prime is 235045001. The next prime is 235045037. The reversal of 235045021 is 120540532.

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 193905625 + 41139396 = 13925^2 + 6414^2 .

It is a cyclic number.

It is not a de Polignac number, because 235045021 - 2¹³ = 235036829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235044983 and 235045001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235045001) 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, 94396 + ... + 96853.

It is an arithmetic number, because the mean of its divisors is an integer number (58809375).

Almost surely, 2^235045021 is an apocalyptic number.

It is an amenable number.

235045021 is a deficient number, since it is larger than the sum of its proper divisors (192479).

235045021 is a wasteful number, since it uses less digits than its factorization.

235045021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192478.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 235045021 is about 15331.1780695418. The cubic root of 235045021 is about 617.1399845418.

Adding to 235045021 its reverse (120540532), we get a palindrome (355585553).

The spelling of 235045021 in words is "two hundred thirty-five million, forty-five thousand, twenty-one".