140556656 has 20 divisors (see below), whose sum is σ = 272824800. Its totient is φ = 70150272.

The previous prime is 140556653. The next prime is 140556671. The reversal of 140556656 is 656655041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140556653) 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, 1385 + ... + 16823.

It is an arithmetic number, because the mean of its divisors is an integer number (13641240).

Almost surely, 2^140556656 is an apocalyptic number.

140556656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140556656 is a deficient number, since it is larger than the sum of its proper divisors (132268144).

140556656 is a wasteful number, since it uses less digits than its factorization.

140556656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16016 (or 16010 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 38.

The square root of 140556656 is about 11855.6592393675. The cubic root of 140556656 is about 519.9366984088.

The spelling of 140556656 in words is "one hundred forty million, five hundred fifty-six thousand, six hundred fifty-six".