140531108 has 12 divisors (see below), whose sum is σ = 251928012. Its totient is φ = 68551680.

The previous prime is 140531077. The next prime is 140531113. The reversal of 140531108 is 801135041.

140531108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18472804 + 122058304 = 4298^2 + 11048^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428285 + ... + 428612.

It is an arithmetic number, because the mean of its divisors is an integer number (20994001).

Almost surely, 2^140531108 is an apocalyptic number.

It is an amenable number.

140531108 is a deficient number, since it is larger than the sum of its proper divisors (111396904).

140531108 is a wasteful number, since it uses less digits than its factorization.

140531108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856942 (or 856940 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 140531108 is about 11854.5817302847. The cubic root of 140531108 is about 519.9051947479.

Adding to 140531108 its reverse (801135041), we get a palindrome (941666149).

The spelling of 140531108 in words is "one hundred forty million, five hundred thirty-one thousand, one hundred eight".