136683445 has 4 divisors (see below), whose sum is σ = 164020140. Its totient is φ = 109346752.

The previous prime is 136683431. The next prime is 136683517. The reversal of 136683445 is 544386631.

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 21464689 + 115218756 = 4633^2 + 10734^2 .

It is a cyclic number.

It is not a de Polignac number, because 136683445 - 2⁵ = 136683413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136683398 and 136683407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13668340 + ... + 13668349.

It is an arithmetic number, because the mean of its divisors is an integer number (41005035).

Almost surely, 2^136683445 is an apocalyptic number.

It is an amenable number.

136683445 is a deficient number, since it is larger than the sum of its proper divisors (27336695).

136683445 is an equidigital number, since it uses as much as digits as its factorization.

136683445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27336694.

The product of its digits is 207360, while the sum is 40.

The square root of 136683445 is about 11691.1695308895. The cubic root of 136683445 is about 515.1163151988.

The spelling of 136683445 in words is "one hundred thirty-six million, six hundred eighty-three thousand, four hundred forty-five".