Search a number
-
+
255143597 is a prime number
BaseRepresentation
bin11110011010100…
…10111010101101
3122210002122012212
433031102322231
51010304043342
641152340205
76215453612
oct1715227255
9583078185
10255143597
11121027185
1271544665
1340b23957
1425c58509
15175ed182
hexf352ead

255143597 has 2 divisors, whose sum is σ = 255143598. Its totient is φ = 255143596.

The previous prime is 255143579. The next prime is 255143627. The reversal of 255143597 is 795341552.

Together with previous prime (255143579) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 255072841 + 70756 = 15971^2 + 266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-255143597 is a prime.

It is a super-3 number, since 3×2551435973 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255143507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127571798 + 127571799.

It is an arithmetic number, because the mean of its divisors is an integer number (127571799).

Almost surely, 2255143597 is an apocalyptic number.

It is an amenable number.

255143597 is a deficient number, since it is larger than the sum of its proper divisors (1).

255143597 is an equidigital number, since it uses as much as digits as its factorization.

255143597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 41.

The square root of 255143597 is about 15973.2149863451. The cubic root of 255143597 is about 634.2515802737.

The spelling of 255143597 in words is "two hundred fifty-five million, one hundred forty-three thousand, five hundred ninety-seven".