140531036 has 12 divisors (see below), whose sum is σ = 247807560. Its totient is φ = 69728880.

The previous prime is 140531003. The next prime is 140531047. The reversal of 140531036 is 630135041.

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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133571 + ... + 134618.

It is an arithmetic number, because the mean of its divisors is an integer number (20650630).

Almost surely, 2^140531036 is an apocalyptic number.

It is an amenable number.

140531036 is a deficient number, since it is larger than the sum of its proper divisors (107276524).

140531036 is a wasteful number, since it uses less digits than its factorization.

140531036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268324 (or 268322 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 140531036 is about 11854.5786934838. The cubic root of 140531036 is about 519.9051059581.

Adding to 140531036 its reverse (630135041), we get a palindrome (770666077).

The spelling of 140531036 in words is "one hundred forty million, five hundred thirty-one thousand, thirty-six".