140655660 has 24 divisors (see below), whose sum is σ = 393836016. Its totient is φ = 37508160.

The previous prime is 140655577. The next prime is 140655661. The reversal of 140655660 is 66556041.

It is not an unprimeable number, because it can be changed into a prime (140655661) 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 7 ways as a sum of consecutive naturals, for example, 1172071 + ... + 1172190.

It is an arithmetic number, because the mean of its divisors is an integer number (16409834).

Almost surely, 2^140655660 is an apocalyptic number.

140655660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140655660 is an abundant number, since it is smaller than the sum of its proper divisors (253180356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140655660 is a wasteful number, since it uses less digits than its factorization.

140655660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344273 (or 2344271 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 140655660 is about 11859.8338942837. The cubic root of 140655660 is about 520.0587458286.

The spelling of 140655660 in words is "one hundred forty million, six hundred fifty-five thousand, six hundred sixty".