136173307737 has 4 divisors (see below), whose sum is σ = 181564410320. Its totient is φ = 90782205156.

The previous prime is 136173307643. The next prime is 136173307783. The reversal of 136173307737 is 737703371631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 136173307737 - 2⁸ = 136173307481 is a prime.

It is a super-2 number, since 2×136173307737² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136173307037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22695551287 + ... + 22695551292.

It is an arithmetic number, because the mean of its divisors is an integer number (45391102580).

Almost surely, 2^136173307737 is an apocalyptic number.

It is an amenable number.

136173307737 is a deficient number, since it is larger than the sum of its proper divisors (45391102583).

136173307737 is an equidigital number, since it uses as much as digits as its factorization.

136173307737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45391102582.

The product of its (nonzero) digits is 1166886, while the sum is 48.

The spelling of 136173307737 in words is "one hundred thirty-six billion, one hundred seventy-three million, three hundred seven thousand, seven hundred thirty-seven".