139584400145 has 4 divisors (see below), whose sum is σ = 167501280180. Its totient is φ = 111667520112.

The previous prime is 139584400141. The next prime is 139584400171. The reversal of 139584400145 is 541004485931.

139584400145 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.

It can be written as a sum of positive squares in 2 ways, for example, as 82352928784 + 57231471361 = 286972^2 + 239231^2 .

It is a cyclic number.

It is not a de Polignac number, because 139584400145 - 2² = 139584400141 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 139584400096 and 139584400105.

It is not an unprimeable number, because it can be changed into a prime (139584400141) 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 3 ways as a sum of consecutive naturals, for example, 13958440010 + ... + 13958440019.

It is an arithmetic number, because the mean of its divisors is an integer number (41875320045).

Almost surely, 2^139584400145 is an apocalyptic number.

It is an amenable number.

139584400145 is a deficient number, since it is larger than the sum of its proper divisors (27916880035).

139584400145 is an equidigital number, since it uses as much as digits as its factorization.

139584400145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27916880034.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 139584400145 in words is "one hundred thirty-nine billion, five hundred eighty-four million, four hundred thousand, one hundred forty-five".