4140255 has 48 divisors (see below), whose sum is σ = 7945344. Its totient is φ = 1834560.

The previous prime is 4140217. The next prime is 4140259. The reversal of 4140255 is 5520414.

It is not a de Polignac number, because 4140255 - 2⁸ = 4139999 is a prime.

It is a super-2 number, since 2×4140255² = 34283422930050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

4140255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140259) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31540 + ... + 31670.

It is an arithmetic number, because the mean of its divisors is an integer number (165528).

Almost surely, 2^4140255 is an apocalyptic number.

4140255 is a deficient number, since it is larger than the sum of its proper divisors (3805089).

4140255 is a wasteful number, since it uses less digits than its factorization.

4140255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 4140255 is about 2034.7616568041. The cubic root of 4140255 is about 160.5741740405.

Adding to 4140255 its reverse (5520414), we get a palindrome (9660669).

The spelling of 4140255 in words is "four million, one hundred forty thousand, two hundred fifty-five".