140688956 has 12 divisors (see below), whose sum is σ = 247774968. Its totient is φ = 69896112.

The previous prime is 140688937. The next prime is 140688959. The reversal of 140688956 is 659886041.

140688956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 140688956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140688959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111386 + ... + 112641.

It is an arithmetic number, because the mean of its divisors is an integer number (20647914).

Almost surely, 2^140688956 is an apocalyptic number.

It is an amenable number.

140688956 is a deficient number, since it is larger than the sum of its proper divisors (107086012).

140688956 is a wasteful number, since it uses less digits than its factorization.

140688956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224188 (or 224186 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 140688956 is about 11861.2375408302. The cubic root of 140688956 is about 520.0997786834.

The spelling of 140688956 in words is "one hundred forty million, six hundred eighty-eight thousand, nine hundred fifty-six".