235201217 has 4 divisors (see below), whose sum is σ = 235246020. Its totient is φ = 235156416.

The previous prime is 235201159. The next prime is 235201231. The reversal of 235201217 is 712102532.

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 104121616 + 131079601 = 10204^2 + 11449^2 .

It is a cyclic number.

It is not a de Polignac number, because 235201217 - 2⁸ = 235200961 is a prime.

It is a super-2 number, since 2×235201217² = 110639224956562178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235201192 and 235201201.

It is not an unprimeable number, because it can be changed into a prime (235201277) by changing a digit.

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, 13292 + ... + 25437.

It is an arithmetic number, because the mean of its divisors is an integer number (58811505).

Almost surely, 2^235201217 is an apocalyptic number.

It is an amenable number.

235201217 is a deficient number, since it is larger than the sum of its proper divisors (44803).

235201217 is an equidigital number, since it uses as much as digits as its factorization.

235201217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44802.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 235201217 is about 15336.2712873762. The cubic root of 235201217 is about 617.2766582903.

Adding to 235201217 its reverse (712102532), we get a palindrome (947303749).

The spelling of 235201217 in words is "two hundred thirty-five million, two hundred one thousand, two hundred seventeen".