140616609 has 16 divisors (see below), whose sum is σ = 214444032. Its totient is φ = 80288208.

The previous prime is 140616607. The next prime is 140616611. The reversal of 140616609 is 906616041.

It is an interprime number because it is at equal distance from previous prime (140616607) and next prime (140616611).

It is not a de Polignac number, because 140616609 - 2¹ = 140616607 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 140616609.

It is not an unprimeable number, because it can be changed into a prime (140616601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 40392 + ... + 43734.

It is an arithmetic number, because the mean of its divisors is an integer number (13402752).

Almost surely, 2^140616609 is an apocalyptic number.

It is an amenable number.

140616609 is a deficient number, since it is larger than the sum of its proper divisors (73827423).

140616609 is a wasteful number, since it uses less digits than its factorization.

140616609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 140616609 is about 11858.1874247290. The cubic root of 140616609 is about 520.0106124560.

The spelling of 140616609 in words is "one hundred forty million, six hundred sixteen thousand, six hundred nine".