140254542 has 48 divisors (see below), whose sum is σ = 320994960. Its totient is φ = 44136576.

The previous prime is 140254511. The next prime is 140254549. The reversal of 140254542 is 245452041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140254549) 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 23 ways as a sum of consecutive naturals, for example, 135258 + ... + 136290.

It is an arithmetic number, because the mean of its divisors is an integer number (6687395).

Almost surely, 2^140254542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140254542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160497480).

140254542 is an abundant number, since it is smaller than the sum of its proper divisors (180740418).

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

140254542 is a wasteful number, since it uses less digits than its factorization.

140254542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457 (or 1454 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 140254542 is about 11842.9110441648. The cubic root of 140254542 is about 519.5639119988.

The spelling of 140254542 in words is "one hundred forty million, two hundred fifty-four thousand, five hundred forty-two".