140863220 has 12 divisors (see below), whose sum is σ = 295812804. Its totient is φ = 56345280.

The previous prime is 140863189. The next prime is 140863231. The reversal of 140863220 is 22368041.

140863220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 85895824 + 54967396 = 9268^2 + 7414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140863220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3521561 + ... + 3521600.

It is an arithmetic number, because the mean of its divisors is an integer number (24651067).

Almost surely, 2^140863220 is an apocalyptic number.

140863220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140863220 is an abundant number, since it is smaller than the sum of its proper divisors (154949584).

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

140863220 is a wasteful number, since it uses less digits than its factorization.

140863220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7043170 (or 7043168 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 140863220 is about 11868.5812125966. The cubic root of 140863220 is about 520.3144301497.

The spelling of 140863220 in words is "one hundred forty million, eight hundred sixty-three thousand, two hundred twenty".