140538168 has 48 divisors (see below), whose sum is σ = 382374720. Its totient is φ = 46630656.

The previous prime is 140538149. The next prime is 140538179. The reversal of 140538168 is 861835041.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11680 + ... + 20432.

It is an arithmetic number, because the mean of its divisors is an integer number (7966140).

Almost surely, 2^140538168 is an apocalyptic number.

140538168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

140538168 is an abundant number, since it is smaller than the sum of its proper divisors (241836552).

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

140538168 is a wasteful number, since it uses less digits than its factorization.

140538168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8988 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 140538168 is about 11854.8795017073. The cubic root of 140538168 is about 519.9139009323.

The spelling of 140538168 in words is "one hundred forty million, five hundred thirty-eight thousand, one hundred sixty-eight".