255146317 has 4 divisors (see below), whose sum is σ = 255201280. Its totient is φ = 255091356.

The previous prime is 255146273. The next prime is 255146327. The reversal of 255146317 is 713641552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255146317 - 2⁷ = 255146189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255146327) 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, 19803 + ... + 30040.

It is an arithmetic number, because the mean of its divisors is an integer number (63800320).

Almost surely, 2^255146317 is an apocalyptic number.

It is an amenable number.

255146317 is a deficient number, since it is larger than the sum of its proper divisors (54963).

255146317 is an equidigital number, since it uses as much as digits as its factorization.

255146317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54962.

The product of its digits is 25200, while the sum is 34.

The square root of 255146317 is about 15973.3001286522. The cubic root of 255146317 is about 634.2538341132.

Adding to 255146317 its reverse (713641552), we get a palindrome (968787869).

The spelling of 255146317 in words is "two hundred fifty-five million, one hundred forty-six thousand, three hundred seventeen".