169535130137 has 4 divisors (see below), whose sum is σ = 170147170596. Its totient is φ = 168923089680.

The previous prime is 169535130133. The next prime is 169535130209. The reversal of 169535130137 is 731031535961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731031535961 = 83 ⋅8807608867.

It can be written as a sum of positive squares in 2 ways, for example, as 93303367936 + 76231762201 = 305456^2 + 276101^2 .

It is a cyclic number.

It is not a de Polignac number, because 169535130137 - 2² = 169535130133 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (169535130133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306019814 + ... + 306020367.

It is an arithmetic number, because the mean of its divisors is an integer number (42536792649).

Almost surely, 2^169535130137 is an apocalyptic number.

It is an amenable number.

169535130137 is a deficient number, since it is larger than the sum of its proper divisors (612040459).

169535130137 is an equidigital number, since it uses as much as digits as its factorization.

169535130137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612040458.

The product of its (nonzero) digits is 255150, while the sum is 44.

The spelling of 169535130137 in words is "one hundred sixty-nine billion, five hundred thirty-five million, one hundred thirty thousand, one hundred thirty-seven".