140509006 has 8 divisors (see below), whose sum is σ = 229923864. Its totient is φ = 63867720.

The previous prime is 140508997. The next prime is 140509007. The reversal of 140509006 is 600905041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140509007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3193365 + ... + 3193408.

It is an arithmetic number, because the mean of its divisors is an integer number (28740483).

Almost surely, 2^140509006 is an apocalyptic number.

140509006 is a deficient number, since it is larger than the sum of its proper divisors (89414858).

140509006 is a wasteful number, since it uses less digits than its factorization.

140509006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386786.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 140509006 is about 11853.6494802234. The cubic root of 140509006 is about 519.8779373261.

The spelling of 140509006 in words is "one hundred forty million, five hundred nine thousand, six".