540140142 has 32 divisors (see below), whose sum is σ = 1128533760. Its totient is φ = 172022400.

The previous prime is 540140101. The next prime is 540140147. The reversal of 540140142 is 241041045.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540140147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164109 + ... + 167367.

It is an arithmetic number, because the mean of its divisors is an integer number (35266680).

Almost surely, 2^540140142 is an apocalyptic number.

540140142 is an abundant number, since it is smaller than the sum of its proper divisors (588393618).

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

540140142 is a wasteful number, since it uses less digits than its factorization.

540140142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 540140142 is about 23240.9152573645. The cubic root of 540140142 is about 814.3957240545.

Adding to 540140142 its reverse (241041045), we get a palindrome (781181187).

The spelling of 540140142 in words is "five hundred forty million, one hundred forty thousand, one hundred forty-two".