312720255 has 12 divisors (see below), whose sum is σ = 542048520. Its totient is φ = 166784112.

The previous prime is 312720241. The next prime is 312720271. The reversal of 312720255 is 552027213.

It is not a de Polignac number, because 312720255 - 2¹³ = 312712063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3474625 + ... + 3474714.

It is an arithmetic number, because the mean of its divisors is an integer number (45170710).

Almost surely, 2^312720255 is an apocalyptic number.

312720255 is a deficient number, since it is larger than the sum of its proper divisors (229328265).

312720255 is a wasteful number, since it uses less digits than its factorization.

312720255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6949350 (or 6949347 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 312720255 is about 17683.8981845067. The cubic root of 312720255 is about 678.7637971209.

Adding to 312720255 its reverse (552027213), we get a palindrome (864747468).

The spelling of 312720255 in words is "three hundred twelve million, seven hundred twenty thousand, two hundred fifty-five".