136549400193 has 12 divisors (see below), whose sum is σ = 198419090688. Its totient is φ = 90487825080.

The previous prime is 136549400171. The next prime is 136549400243. The reversal of 136549400193 is 391004945631.

136549400193 is a `hidden beast` number, since 1 + 3 + 6 + 54 + 9 + 400 + 193 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-136549400193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136549400893) 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 11 ways as a sum of consecutive naturals, for example, 45424113 + ... + 45427118.

It is an arithmetic number, because the mean of its divisors is an integer number (16534924224).

Almost surely, 2^136549400193 is an apocalyptic number.

It is an amenable number.

136549400193 is a deficient number, since it is larger than the sum of its proper divisors (61869690495).

136549400193 is a wasteful number, since it uses less digits than its factorization.

136549400193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90851404 (or 90851401 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The spelling of 136549400193 in words is "one hundred thirty-six billion, five hundred forty-nine million, four hundred thousand, one hundred ninety-three".