140540 has 12 divisors (see below), whose sum is σ = 295176. Its totient is φ = 56208.

The previous prime is 140533. The next prime is 140549. The reversal of 140540 is 45041.

140540 = T₉₆ + T₉₇ + ... + T₁₁₉.

140540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

140540 is a modest number, since divided by 540 gives 140 as remainder.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 140540.

It is not an unprimeable number, because it can be changed into a prime (140549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3494 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (24598).

2¹⁴⁰⁵⁴⁰ is an apocalyptic number.

140540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140540 is an abundant number, since it is smaller than the sum of its proper divisors (154636).

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

140540 is a wasteful number, since it uses less digits than its factorization.

140540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7036 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 140540 is about 374.8866495356. The cubic root of 140540 is about 51.9916160053.

Adding to 140540 its reverse (45041), we get a palindrome (185581).

The spelling of 140540 in words is "one hundred forty thousand, five hundred forty".