139454305637 has 6 divisors (see below), whose sum is σ = 140229061074. Its totient is φ = 138683807280.

The previous prime is 139454305621. The next prime is 139454305691. The reversal of 139454305637 is 736503454931.

139454305637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 827655361 + 138626650276 = 28769^2 + 372326^2 .

It is not a de Polignac number, because 139454305637 - 2⁴ = 139454305621 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 (139454305037) 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 5 ways as a sum of consecutive naturals, for example, 2095598 + ... + 2161119.

It is an arithmetic number, because the mean of its divisors is an integer number (23371510179).

Almost surely, 2^139454305637 is an apocalyptic number.

It is an amenable number.

139454305637 is a deficient number, since it is larger than the sum of its proper divisors (774755437).

139454305637 is an frugal number, since it uses more digits than its factorization.

139454305637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4257079 (or 4256898 counting only the distinct ones).

The product of its (nonzero) digits is 4082400, while the sum is 50.

The spelling of 139454305637 in words is "one hundred thirty-nine billion, four hundred fifty-four million, three hundred five thousand, six hundred thirty-seven".