140255505 has 24 divisors (see below), whose sum is σ = 261811368. Its totient is φ = 69048576.

The previous prime is 140255503. The next prime is 140255509. The reversal of 140255505 is 505552041.

It can be written as a sum of positive squares in 4 ways, for example, as 5602689 + 134652816 = 2367^2 + 11604^2 .

It is not a de Polignac number, because 140255505 - 2¹ = 140255503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140255503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119292 + ... + 120461.

It is an arithmetic number, because the mean of its divisors is an integer number (10908807).

Almost surely, 2^140255505 is an apocalyptic number.

140255505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140255505 is a deficient number, since it is larger than the sum of its proper divisors (121555863).

140255505 is a wasteful number, since it uses less digits than its factorization.

140255505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239777 (or 239774 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 140255505 is about 11842.9517013285. The cubic root of 140255505 is about 519.5651011199.

The spelling of 140255505 in words is "one hundred forty million, two hundred fifty-five thousand, five hundred five".