140424255 has 12 divisors (see below), whose sum is σ = 243402120. Its totient is φ = 74892912.

The previous prime is 140424241. The next prime is 140424259. The reversal of 140424255 is 552424041.

140424255 is a `hidden beast` number, since 1 + 404 + 2 + 4 + 255 = 666.

It is not a de Polignac number, because 140424255 - 2⁶ = 140424191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140424259) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1560225 + ... + 1560314.

It is an arithmetic number, because the mean of its divisors is an integer number (20283510).

Almost surely, 2^140424255 is an apocalyptic number.

140424255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140424255 is a deficient number, since it is larger than the sum of its proper divisors (102977865).

140424255 is a wasteful number, since it uses less digits than its factorization.

140424255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120550 (or 3120547 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 140424255 is about 11850.0740504015. The cubic root of 140424255 is about 519.7733911528.

Adding to 140424255 its reverse (552424041), we get a palindrome (692848296).

The spelling of 140424255 in words is "one hundred forty million, four hundred twenty-four thousand, two hundred fifty-five".