140866540 has 24 divisors (see below), whose sum is σ = 296044560. Its totient is φ = 56303808.

The previous prime is 140866519. The next prime is 140866547. The reversal of 140866540 is 45668041.

It is a junction number, because it is equal to n+sod(n) for n = 140866496 and 140866505.

It is not an unprimeable number, because it can be changed into a prime (140866547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45151 + ... + 48169.

It is an arithmetic number, because the mean of its divisors is an integer number (12335190).

Almost surely, 2^140866540 is an apocalyptic number.

140866540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140866540 is an abundant number, since it is smaller than the sum of its proper divisors (155178020).

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

140866540 is a wasteful number, since it uses less digits than its factorization.

140866540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5361 (or 5359 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 140866540 is about 11868.7210768473. The cubic root of 140866540 is about 520.3185178748.

The spelling of 140866540 in words is "one hundred forty million, eight hundred sixty-six thousand, five hundred forty".