136644183241 has 4 divisors (see below), whose sum is σ = 136776463252. Its totient is φ = 136511903232.

The previous prime is 136644183233. The next prime is 136644183323. The reversal of 136644183241 is 142381446631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60415182025 + 76229001216 = 245795^2 + 276096^2 .

It is a cyclic number.

It is not a de Polignac number, because 136644183241 - 2³ = 136644183233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136644183541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66138456 + ... + 66140521.

It is an arithmetic number, because the mean of its divisors is an integer number (34194115813).

Almost surely, 2^136644183241 is an apocalyptic number.

It is an amenable number.

136644183241 is a deficient number, since it is larger than the sum of its proper divisors (132280011).

136644183241 is a wasteful number, since it uses less digits than its factorization.

136644183241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132280010.

The product of its digits is 331776, while the sum is 43.

The spelling of 136644183241 in words is "one hundred thirty-six billion, six hundred forty-four million, one hundred eighty-three thousand, two hundred forty-one".