140027540 has 12 divisors (see below), whose sum is σ = 294057876. Its totient is φ = 56011008.

The previous prime is 140027539. The next prime is 140027543. The reversal of 140027540 is 45720041.

It can be written as a sum of positive squares in 2 ways, for example, as 22391824 + 117635716 = 4732^2 + 10846^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140027543) 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 3 ways as a sum of consecutive naturals, for example, 3500669 + ... + 3500708.

It is an arithmetic number, because the mean of its divisors is an integer number (24504823).

Almost surely, 2^140027540 is an apocalyptic number.

140027540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140027540 is an abundant number, since it is smaller than the sum of its proper divisors (154030336).

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

140027540 is a wasteful number, since it uses less digits than its factorization.

140027540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001386 (or 7001384 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 140027540 is about 11833.3232863807. The cubic root of 140027540 is about 519.2834558784.

Adding to 140027540 its reverse (45720041), we get a palindrome (185747581).

The spelling of 140027540 in words is "one hundred forty million, twenty-seven thousand, five hundred forty".