255120136 has 32 divisors (see below), whose sum is σ = 489968640. Its totient is φ = 124478208.

The previous prime is 255120127. The next prime is 255120157. The reversal of 255120136 is 631021552.

It is a self number, because there is not a number n which added to its sum of digits gives 255120136.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162025 + ... + 163591.

It is an arithmetic number, because the mean of its divisors is an integer number (15311520).

Almost surely, 2^255120136 is an apocalyptic number.

It is an amenable number.

255120136 is a deficient number, since it is larger than the sum of its proper divisors (234848504).

255120136 is a wasteful number, since it uses less digits than its factorization.

255120136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 255120136 is about 15972.4805838041. The cubic root of 255120136 is about 634.2321394142.

Adding to 255120136 its reverse (631021552), we get a palindrome (886141688).

The spelling of 255120136 in words is "two hundred fifty-five million, one hundred twenty thousand, one hundred thirty-six".