136244640545 has 24 divisors (see below), whose sum is σ = 186355195200. Its totient is φ = 95316077376.

The previous prime is 136244640527. The next prime is 136244640599. The reversal of 136244640545 is 545046442631.

It is not a de Polignac number, because 136244640545 - 2⁶ = 136244640481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136244640496 and 136244640505.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 4227005 + ... + 4259114.

It is an arithmetic number, because the mean of its divisors is an integer number (7764799800).

Almost surely, 2^136244640545 is an apocalyptic number.

It is an amenable number.

136244640545 is a deficient number, since it is larger than the sum of its proper divisors (50110554655).

136244640545 is a wasteful number, since it uses less digits than its factorization.

136244640545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486169 (or 8486156 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 44.

The spelling of 136244640545 in words is "one hundred thirty-six billion, two hundred forty-four million, six hundred forty thousand, five hundred forty-five".