140731056 has 30 divisors (see below), whose sum is σ = 393851900. Its totient is φ = 46910304.

The previous prime is 140730971. The next prime is 140731057. The reversal of 140731056 is 650137041.

It is not an unprimeable number, because it can be changed into a prime (140731057) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 488506 + ... + 488793.

Almost surely, 2^140731056 is an apocalyptic number.

140731056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140731056 is an abundant number, since it is smaller than the sum of its proper divisors (253120844).

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

140731056 is a wasteful number, since it uses less digits than its factorization.

140731056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977313 (or 977304 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 140731056 is about 11863.0120964281. The cubic root of 140731056 is about 520.1516520206.

Adding to 140731056 its reverse (650137041), we get a palindrome (790868097).

It can be divided in two parts, 14073 and 1056, that added together give a square (15129 = 123²).

The spelling of 140731056 in words is "one hundred forty million, seven hundred thirty-one thousand, fifty-six".