140555655 has 20 divisors (see below), whose sum is σ = 251959752. Its totient is φ = 74962800.

The previous prime is 140555627. The next prime is 140555669. The reversal of 140555655 is 556555041.

140555655 is a `hidden beast` number, since 1 + 40 + 55 + 565 + 5 = 666.

It is not a de Polignac number, because 140555655 - 2⁸ = 140555399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 173121 + ... + 173930.

Almost surely, 2^140555655 is an apocalyptic number.

140555655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140555655 is a deficient number, since it is larger than the sum of its proper divisors (111404097).

140555655 is an equidigital number, since it uses as much as digits as its factorization.

140555655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347068 (or 347059 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

The square root of 140555655 is about 11855.6170231667. The cubic root of 140555655 is about 519.9354641310.

The spelling of 140555655 in words is "one hundred forty million, five hundred fifty-five thousand, six hundred fifty-five".