137970273565 has 8 divisors (see below), whose sum is σ = 175303406520. Its totient is φ = 103883500032.

The previous prime is 137970273521. The next prime is 137970273569. The reversal of 137970273565 is 565372079731.

137970273565 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 4 ways, for example, as 50842583289 + 87127690276 = 225483^2 + 295174^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 137970273565 - 2²⁹ = 137433402653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137970273569) 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 7 ways as a sum of consecutive naturals, for example, 811589760 + ... + 811589929.

It is an arithmetic number, because the mean of its divisors is an integer number (21912925815).

Almost surely, 2^137970273565 is an apocalyptic number.

It is an amenable number.

137970273565 is a deficient number, since it is larger than the sum of its proper divisors (37333132955).

137970273565 is a wasteful number, since it uses less digits than its factorization.

137970273565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1623179711.

The product of its (nonzero) digits is 8334900, while the sum is 55.

The spelling of 137970273565 in words is "one hundred thirty-seven billion, nine hundred seventy million, two hundred seventy-three thousand, five hundred sixty-five".