255313121 has 8 divisors (see below), whose sum is σ = 296570304. Its totient is φ = 215251920.

The previous prime is 255313111. The next prime is 255313141. The reversal of 255313121 is 121313552.

It is a happy number.

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

It is not a de Polignac number, because 255313121 - 2¹⁰ = 255312097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255313111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298535 + ... + 299388.

It is an arithmetic number, because the mean of its divisors is an integer number (37071288).

Almost surely, 2^255313121 is an apocalyptic number.

It is an amenable number.

255313121 is a deficient number, since it is larger than the sum of its proper divisors (41257183).

255313121 is an equidigital number, since it uses as much as digits as its factorization.

255313121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597991.

The product of its digits is 900, while the sum is 23.

The square root of 255313121 is about 15978.5206136238. The cubic root of 255313121 is about 634.3920202217.

Adding to 255313121 its reverse (121313552), we get a palindrome (376626673).

The spelling of 255313121 in words is "two hundred fifty-five million, three hundred thirteen thousand, one hundred twenty-one".