140544655 has 4 divisors (see below), whose sum is σ = 168653592. Its totient is φ = 112435720.

The previous prime is 140544641. The next prime is 140544659. The reversal of 140544655 is 556445041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140544655 - 2²⁷ = 6326927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140544655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140544659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14054461 + ... + 14054470.

It is an arithmetic number, because the mean of its divisors is an integer number (42163398).

Almost surely, 2^140544655 is an apocalyptic number.

140544655 is a deficient number, since it is larger than the sum of its proper divisors (28108937).

140544655 is an equidigital number, since it uses as much as digits as its factorization.

140544655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28108936.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 140544655 is about 11855.1530989692. The cubic root of 140544655 is about 519.9219002529.

Adding to 140544655 its reverse (556445041), we get a palindrome (696989696).

The spelling of 140544655 in words is "one hundred forty million, five hundred forty-four thousand, six hundred fifty-five".