140132540 has 12 divisors (see below), whose sum is σ = 294278376. Its totient is φ = 56053008.

The previous prime is 140132533. The next prime is 140132549. The reversal of 140132540 is 45231041.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 7006627 = 140132540 / (1 + 4 + 0 + 1 + 3 + 2 + 5 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140132549) 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, 3503294 + ... + 3503333.

It is an arithmetic number, because the mean of its divisors is an integer number (24523198).

Almost surely, 2^140132540 is an apocalyptic number.

140132540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140132540 is an abundant number, since it is smaller than the sum of its proper divisors (154145836).

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

140132540 is a wasteful number, since it uses less digits than its factorization.

140132540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006636 (or 7006634 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140132540 is about 11837.7590784743. The cubic root of 140132540 is about 519.4132187808.

Adding to 140132540 its reverse (45231041), we get a palindrome (185363581).

The spelling of 140132540 in words is "one hundred forty million, one hundred thirty-two thousand, five hundred forty".