140121056 has 24 divisors (see below), whose sum is σ = 279753264. Its totient is φ = 69072640.

The previous prime is 140121049. The next prime is 140121071. The reversal of 140121056 is 650121041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28565 + ... + 33108.

It is an arithmetic number, because the mean of its divisors is an integer number (11656386).

Almost surely, 2^140121056 is an apocalyptic number.

140121056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140121056 is a deficient number, since it is larger than the sum of its proper divisors (139632208).

140121056 is an equidigital number, since it uses as much as digits as its factorization.

140121056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61754 (or 61746 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 140121056 is about 11837.2740105144. The cubic root of 140121056 is about 519.3990295845.

Adding to 140121056 its reverse (650121041), we get a palindrome (790242097).

The spelling of 140121056 in words is "one hundred forty million, one hundred twenty-one thousand, fifty-six".