140252540 has 12 divisors (see below), whose sum is σ = 294530376. Its totient is φ = 56101008.

The previous prime is 140252501. The next prime is 140252569. The reversal of 140252540 is 45252041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3506294 + ... + 3506333.

It is an arithmetic number, because the mean of its divisors is an integer number (24544198).

Almost surely, 2^140252540 is an apocalyptic number.

140252540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140252540 is an abundant number, since it is smaller than the sum of its proper divisors (154277836).

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

140252540 is a wasteful number, since it uses less digits than its factorization.

140252540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012636 (or 7012634 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 140252540 is about 11842.8265207255. The cubic root of 140252540 is about 519.5614398937.

The spelling of 140252540 in words is "one hundred forty million, two hundred fifty-two thousand, five hundred forty".