140353218 has 12 divisors (see below), whose sum is σ = 304098678. Its totient is φ = 46784400.

The previous prime is 140353211. The next prime is 140353229. The reversal of 140353218 is 812353041.

It is a happy number.

140353218 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 only one way, i.e., 115283169 + 25070049 = 10737^2 + 5007^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140353191 and 140353200.

It is not an unprimeable number, because it can be changed into a prime (140353211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3898683 + ... + 3898718.

Almost surely, 2^140353218 is an apocalyptic number.

140353218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

140353218 is an abundant number, since it is smaller than the sum of its proper divisors (163745460).

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

140353218 is a wasteful number, since it uses less digits than its factorization.

140353218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7797409 (or 7797406 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 140353218 is about 11847.0763481966. The cubic root of 140353218 is about 519.6857297293.

The spelling of 140353218 in words is "one hundred forty million, three hundred fifty-three thousand, two hundred eighteen".