138007300961 has 4 divisors (see below), whose sum is σ = 141737228052. Its totient is φ = 134277373872.

The previous prime is 138007300853. The next prime is 138007300969. The reversal of 138007300961 is 169003700831.

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 59618500561 + 78388800400 = 244169^2 + 279980^2 .

It is a cyclic number.

It is not a de Polignac number, because 138007300961 - 2³⁰ = 136933559137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138007300969) 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 3 ways as a sum of consecutive naturals, for example, 1864963490 + ... + 1864963563.

It is an arithmetic number, because the mean of its divisors is an integer number (35434307013).

Almost surely, 2^138007300961 is an apocalyptic number.

It is an amenable number.

138007300961 is a deficient number, since it is larger than the sum of its proper divisors (3729927091).

138007300961 is an equidigital number, since it uses as much as digits as its factorization.

138007300961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729927090.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 138007300961 in words is "one hundred thirty-eight billion, seven million, three hundred thousand, nine hundred sixty-one".