140003540 has 24 divisors (see below), whose sum is σ = 298829832. Its totient is φ = 55082880.

The previous prime is 140003531. The next prime is 140003587. The reversal of 140003540 is 45300041.

It can be written as a sum of positive squares in 4 ways, for example, as 669124 + 139334416 = 818^2 + 11804^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56159 + ... + 58598.

It is an arithmetic number, because the mean of its divisors is an integer number (12451243).

Almost surely, 2^140003540 is an apocalyptic number.

140003540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140003540 is an abundant number, since it is smaller than the sum of its proper divisors (158826292).

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

140003540 is a wasteful number, since it uses less digits than its factorization.

140003540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114827 (or 114825 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 140003540 is about 11832.3091575567. The cubic root of 140003540 is about 519.2537866790.

Adding to 140003540 its reverse (45300041), we get a palindrome (185303581).

The spelling of 140003540 in words is "one hundred forty million, three thousand, five hundred forty".