140587689 has 16 divisors (see below), whose sum is σ = 207083520. Its totient is φ = 84124560.

The previous prime is 140587673. The next prime is 140587703. The reversal of 140587689 is 986785041.

It is not a de Polignac number, because 140587689 - 2⁴ = 140587673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140587639) 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, 24357 + ... + 29570.

It is an arithmetic number, because the mean of its divisors is an integer number (12942720).

Almost surely, 2^140587689 is an apocalyptic number.

It is an amenable number.

140587689 is a deficient number, since it is larger than the sum of its proper divisors (66495831).

140587689 is a wasteful number, since it uses less digits than its factorization.

140587689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54020.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 140587689 is about 11856.9679513778. The cubic root of 140587689 is about 519.9749605793.

The spelling of 140587689 in words is "one hundred forty million, five hundred eighty-seven thousand, six hundred eighty-nine".