139559189 has 8 divisors (see below), whose sum is σ = 173995968. Its totient is φ = 108747360.

The previous prime is 139559177. The next prime is 139559207. The reversal of 139559189 is 981955931.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139559189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139559149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 906152 + ... + 906305.

It is an arithmetic number, because the mean of its divisors is an integer number (21749496).

Almost surely, 2^139559189 is an apocalyptic number.

It is an amenable number.

139559189 is a deficient number, since it is larger than the sum of its proper divisors (34436779).

139559189 is a wasteful number, since it uses less digits than its factorization.

139559189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812475.

The product of its digits is 437400, while the sum is 50.

The square root of 139559189 is about 11813.5172154613. The cubic root of 139559189 is about 518.7038589821.

The spelling of 139559189 in words is "one hundred thirty-nine million, five hundred fifty-nine thousand, one hundred eighty-nine".