235245021 has 16 divisors (see below), whose sum is σ = 344875008. Its totient is φ = 141447600.

The previous prime is 235244993. The next prime is 235245037. The reversal of 235245021 is 120542532.

It is not a de Polignac number, because 235245021 - 2⁹ = 235244509 is a prime.

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 235244982 and 235245000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235245041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23875 + ... + 32256.

It is an arithmetic number, because the mean of its divisors is an integer number (21554688).

Almost surely, 2^235245021 is an apocalyptic number.

It is an amenable number.

235245021 is a deficient number, since it is larger than the sum of its proper divisors (109629987).

235245021 is a wasteful number, since it uses less digits than its factorization.

235245021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56272.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 235245021 is about 15337.6993385579. The cubic root of 235245021 is about 617.3149765562.

Adding to 235245021 its reverse (120542532), we get a palindrome (355787553).

The spelling of 235245021 in words is "two hundred thirty-five million, two hundred forty-five thousand, twenty-one".