255344121 has 12 divisors (see below), whose sum is σ = 370870500. Its totient is φ = 169287840.

The previous prime is 255344119. The next prime is 255344123. The reversal of 255344121 is 121443552.

255344121 is a `hidden beast` number, since 2 + 5 + 534 + 4 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (255344119) and next prime (255344123).

It can be written as a sum of positive squares in 2 ways, for example, as 6051600 + 249292521 = 2460^2 + 15789^2 .

It is not a de Polignac number, because 255344121 - 2¹ = 255344119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255344123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76746 + ... + 80003.

It is an arithmetic number, because the mean of its divisors is an integer number (30905875).

Almost surely, 2^255344121 is an apocalyptic number.

It is an amenable number.

255344121 is a deficient number, since it is larger than the sum of its proper divisors (115526379).

255344121 is a wasteful number, since it uses less digits than its factorization.

255344121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156936 (or 156933 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 255344121 is about 15979.4906364377. The cubic root of 255344121 is about 634.4176950436.

Adding to 255344121 its reverse (121443552), we get a palindrome (376787673).

The spelling of 255344121 in words is "two hundred fifty-five million, three hundred forty-four thousand, one hundred twenty-one".