139112289 has 16 divisors (see below), whose sum is σ = 206274240. Its totient is φ = 92659680.

The previous prime is 139112287. The next prime is 139112291. The reversal of 139112289 is 982211931.

It is an interprime number because it is at equal distance from previous prime (139112287) and next prime (139112291).

It is not a de Polignac number, because 139112289 - 2¹ = 139112287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139112287) 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 15 ways as a sum of consecutive naturals, for example, 56494 + ... + 58904.

It is an arithmetic number, because the mean of its divisors is an integer number (12892140).

Almost surely, 2^139112289 is an apocalyptic number.

It is an amenable number.

139112289 is a deficient number, since it is larger than the sum of its proper divisors (67161951).

139112289 is a wasteful number, since it uses less digits than its factorization.

139112289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557 (or 4551 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 139112289 is about 11794.5872755260. The cubic root of 139112289 is about 518.1495980218.

The spelling of 139112289 in words is "one hundred thirty-nine million, one hundred twelve thousand, two hundred eighty-nine".