140218856 has 48 divisors (see below), whose sum is σ = 291154500. Its totient is φ = 63084032.

The previous prime is 140218853. The next prime is 140218889. The reversal of 140218856 is 658812041.

It can be written as a sum of positive squares in 2 ways, for example, as 127012900 + 13205956 = 11270^2 + 3634^2 .

It is a super-2 number, since 2×140218856² = 39322655155897472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140218853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70970 + ... + 72918.

Almost surely, 2^140218856 is an apocalyptic number.

It is an amenable number.

140218856 is an abundant number, since it is smaller than the sum of its proper divisors (150935644).

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

140218856 is a wasteful number, since it uses less digits than its factorization.

140218856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 1991 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 140218856 is about 11841.4043086114. The cubic root of 140218856 is about 519.5198427653.

The spelling of 140218856 in words is "one hundred forty million, two hundred eighteen thousand, eight hundred fifty-six".