139500089 has 8 divisors (see below), whose sum is σ = 143883648. Its totient is φ = 135175600.

The previous prime is 139500077. The next prime is 139500091. The reversal of 139500089 is 980005931.

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 139500089 - 2¹⁶ = 139434553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (139502089) 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 7 ways as a sum of consecutive naturals, for example, 9947 + ... + 19440.

It is an arithmetic number, because the mean of its divisors is an integer number (17985456).

Almost surely, 2^139500089 is an apocalyptic number.

It is an amenable number.

139500089 is a deficient number, since it is larger than the sum of its proper divisors (4383559).

139500089 is a wasteful number, since it uses less digits than its factorization.

139500089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29535.

The product of its (nonzero) digits is 9720, while the sum is 35.

The square root of 139500089 is about 11811.0155786875. The cubic root of 139500089 is about 518.6306290582.

The spelling of 139500089 in words is "one hundred thirty-nine million, five hundred thousand, eighty-nine".