255138142 has 16 divisors (see below), whose sum is σ = 463108320. Its totient is φ = 102912768.

The previous prime is 255138119. The next prime is 255138157. The reversal of 255138142 is 241831552.

255138142 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535767 + ... + 536242.

It is an arithmetic number, because the mean of its divisors is an integer number (28944270).

Almost surely, 2^255138142 is an apocalyptic number.

255138142 is a deficient number, since it is larger than the sum of its proper divisors (207970178).

255138142 is a wasteful number, since it uses less digits than its factorization.

255138142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072035.

The product of its digits is 9600, while the sum is 31.

The square root of 255138142 is about 15973.0442308284. The cubic root of 255138142 is about 634.2470601171.

Adding to 255138142 its reverse (241831552), we get a palindrome (496969694).

The spelling of 255138142 in words is "two hundred fifty-five million, one hundred thirty-eight thousand, one hundred forty-two".