139706589 has 8 divisors (see below), whose sum is σ = 203209632. Its totient is φ = 84670640.

The previous prime is 139706573. The next prime is 139706599. The reversal of 139706589 is 985607931.

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

It is a cyclic number.

It is not a de Polignac number, because 139706589 - 2⁴ = 139706573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139706549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116734 + ... + 2116799.

It is an arithmetic number, because the mean of its divisors is an integer number (25401204).

Almost surely, 2^139706589 is an apocalyptic number.

It is an amenable number.

139706589 is a deficient number, since it is larger than the sum of its proper divisors (63503043).

139706589 is a wasteful number, since it uses less digits than its factorization.

139706589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4233547.

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 139706589 is about 11819.7541852612. The cubic root of 139706589 is about 518.8864100742.

The spelling of 139706589 in words is "one hundred thirty-nine million, seven hundred six thousand, five hundred eighty-nine".