255440135 has 8 divisors (see below), whose sum is σ = 306751536. Its totient is φ = 204203200.

The previous prime is 255440131. The next prime is 255440173. The reversal of 255440135 is 531044552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255440135 - 2² = 255440131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255440098 and 255440107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255440131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10766 + ... + 25035.

It is an arithmetic number, because the mean of its divisors is an integer number (38343942).

Almost surely, 2^255440135 is an apocalyptic number.

255440135 is a deficient number, since it is larger than the sum of its proper divisors (51311401).

255440135 is a wasteful number, since it uses less digits than its factorization.

255440135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37233.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 255440135 is about 15982.4946425769. The cubic root of 255440135 is about 634.4972025818.

Adding to 255440135 its reverse (531044552), we get a palindrome (786484687).

The spelling of 255440135 in words is "two hundred fifty-five million, four hundred forty thousand, one hundred thirty-five".