140252508 has 72 divisors (see below), whose sum is σ = 389516400. Its totient is φ = 42197760.

The previous prime is 140252501. The next prime is 140252569. The reversal of 140252508 is 805252041.

It is a happy number.

140252508 is a `hidden beast` number, since 1 + 402 + 5 + 250 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140252501) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57816 + ... + 60192.

It is an arithmetic number, because the mean of its divisors is an integer number (5409950).

Almost surely, 2^140252508 is an apocalyptic number.

140252508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140252508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194758200).

140252508 is an abundant number, since it is smaller than the sum of its proper divisors (249263892).

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

140252508 is a wasteful number, since it uses less digits than its factorization.

140252508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2547 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 140252508 is about 11842.8251696966. The cubic root of 140252508 is about 519.5614003794.

The spelling of 140252508 in words is "one hundred forty million, two hundred fifty-two thousand, five hundred eight".