140555244 has 12 divisors (see below), whose sum is σ = 327962264. Its totient is φ = 46851744.

The previous prime is 140555237. The next prime is 140555249. The reversal of 140555244 is 442555041.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (140555249) 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 3 ways as a sum of consecutive naturals, for example, 5856457 + ... + 5856480.

Almost surely, 2^140555244 is an apocalyptic number.

It is an amenable number.

140555244 is an abundant number, since it is smaller than the sum of its proper divisors (187407020).

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

140555244 is a wasteful number, since it uses less digits than its factorization.

140555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11712944 (or 11712942 counting only the distinct ones).

The product of its (nonzero) digits is 16000, while the sum is 30.

The square root of 140555244 is about 11855.5996895982. The cubic root of 140555244 is about 519.9349573479.

The spelling of 140555244 in words is "one hundred forty million, five hundred fifty-five thousand, two hundred forty-four".