275231121 has 8 divisors (see below), whose sum is σ = 400336224. Its totient is φ = 166806720.

The previous prime is 275231119. The next prime is 275231149. The reversal of 275231121 is 121132572.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 275231121 - 2¹ = 275231119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 275231091 and 275231100.

It is not an unprimeable number, because it can be changed into a prime (275231101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4170136 + ... + 4170201.

It is an arithmetic number, because the mean of its divisors is an integer number (50042028).

Almost surely, 2^275231121 is an apocalyptic number.

It is an amenable number.

275231121 is a deficient number, since it is larger than the sum of its proper divisors (125105103).

275231121 is a wasteful number, since it uses less digits than its factorization.

275231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340351.

The product of its digits is 840, while the sum is 24.

The square root of 275231121 is about 16590.0910485747. The cubic root of 275231121 is about 650.4778505922.

Adding to 275231121 its reverse (121132572), we get a palindrome (396363693).

The spelling of 275231121 in words is "two hundred seventy-five million, two hundred thirty-one thousand, one hundred twenty-one".