139067088889 has 3 divisors (see below), whose sum is σ = 139067461807. Its totient is φ = 139066715972.

The previous prime is 139067088871. The next prime is 139067088917. The reversal of 139067088889 is 988880760931.

The square root of 139067088889 is 372917.

It is a perfect power (a square), and thus also a powerful number.

139067088889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 13260674025 + 125806414864 = 115155^2 + 354692^2 .

It is a de Polignac number, because none of the positive numbers 2^k-139067088889 is a prime.

It is a super-2 number, since 2×139067088889² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139067088089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 186459 + ... + 559375.

Almost surely, 2^139067088889 is an apocalyptic number.

139067088889 is the 372917-th square number.

139067088889 is the 186459-th centered octagonal number.

It is an amenable number.

139067088889 is a deficient number, since it is larger than the sum of its proper divisors (372918).

139067088889 is an frugal number, since it uses more digits than its factorization.

139067088889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745834 (or 372917 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 67.

The spelling of 139067088889 in words is "one hundred thirty-nine billion, sixty-seven million, eighty-eight thousand, eight hundred eighty-nine".