140830589 has 4 divisors (see below), whose sum is σ = 141185724. Its totient is φ = 140475456.

The previous prime is 140830537. The next prime is 140830607. The reversal of 140830589 is 985038041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95160025 + 45670564 = 9755^2 + 6758^2 .

It is a cyclic number.

It is not a de Polignac number, because 140830589 - 2²⁴ = 124053373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140830889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176972 + ... + 177765.

It is an arithmetic number, because the mean of its divisors is an integer number (35296431).

Almost surely, 2^140830589 is an apocalyptic number.

It is an amenable number.

140830589 is a deficient number, since it is larger than the sum of its proper divisors (355135).

140830589 is an equidigital number, since it uses as much as digits as its factorization.

140830589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355134.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 140830589 is about 11867.2064530790. The cubic root of 140830589 is about 520.2742500579.

The spelling of 140830589 in words is "one hundred forty million, eight hundred thirty thousand, five hundred eighty-nine".