140172836 has 12 divisors (see below), whose sum is σ = 245419440. Its totient is φ = 70053000.

The previous prime is 140172827. The next prime is 140172839. The reversal of 140172836 is 638271041.

It is not an unprimeable number, because it can be changed into a prime (140172839) by changing a digit.

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, 2711 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (20451620).

Almost surely, 2^140172836 is an apocalyptic number.

It is an amenable number.

140172836 is a deficient number, since it is larger than the sum of its proper divisors (105246604).

140172836 is a wasteful number, since it uses less digits than its factorization.

140172836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16714 (or 16712 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 140172836 is about 11839.4609674596. The cubic root of 140172836 is about 519.4630008637.

The spelling of 140172836 in words is "one hundred forty million, one hundred seventy-two thousand, eight hundred thirty-six".