140244009 has 8 divisors (see below), whose sum is σ = 187658592. Its totient is φ = 93162720.

The previous prime is 140244001. The next prime is 140244011. The reversal of 140244009 is 900442041.

140244009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140244009 - 2³ = 140244001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140244009.

It is not an unprimeable number, because it can be changed into a prime (140244001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82339 + ... + 84024.

It is an arithmetic number, because the mean of its divisors is an integer number (23457324).

Almost surely, 2^140244009 is an apocalyptic number.

It is an amenable number.

140244009 is a deficient number, since it is larger than the sum of its proper divisors (47414583).

140244009 is a wasteful number, since it uses less digits than its factorization.

140244009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166647.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140244009 is about 11842.4663394075. The cubic root of 140244009 is about 519.5509054000.

The spelling of 140244009 in words is "one hundred forty million, two hundred forty-four thousand, nine".