275201321 has 4 divisors (see below), whose sum is σ = 291389652. Its totient is φ = 259012992.

The previous prime is 275201293. The next prime is 275201323. The reversal of 275201321 is 123102572.

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 215355625 + 59845696 = 14675^2 + 7736^2 .

It is a cyclic number.

It is not a de Polignac number, because 275201321 - 2¹⁰ = 275200297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275201323) 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, 8094140 + ... + 8094173.

It is an arithmetic number, because the mean of its divisors is an integer number (72847413).

Almost surely, 2^275201321 is an apocalyptic number.

It is an amenable number.

275201321 is a deficient number, since it is larger than the sum of its proper divisors (16188331).

275201321 is a wasteful number, since it uses less digits than its factorization.

275201321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16188330.

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

The square root of 275201321 is about 16589.1928977874. The cubic root of 275201321 is about 650.4543734268.

Adding to 275201321 its reverse (123102572), we get a palindrome (398303893).

The spelling of 275201321 in words is "two hundred seventy-five million, two hundred one thousand, three hundred twenty-one".