135683537 has 4 divisors (see below), whose sum is σ = 148018416. Its totient is φ = 123348660.

The previous prime is 135683531. The next prime is 135683609. The reversal of 135683537 is 735386531.

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 a cyclic number.

It is not a de Polignac number, because 135683537 - 2⁴ = 135683521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135683494 and 135683503.

It is not an unprimeable number, because it can be changed into a prime (135683531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6167423 + ... + 6167444.

It is an arithmetic number, because the mean of its divisors is an integer number (37004604).

Almost surely, 2^135683537 is an apocalyptic number.

It is an amenable number.

135683537 is a deficient number, since it is larger than the sum of its proper divisors (12334879).

135683537 is a wasteful number, since it uses less digits than its factorization.

135683537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334878.

The product of its digits is 226800, while the sum is 41.

The square root of 135683537 is about 11648.3276482077. The cubic root of 135683537 is about 513.8571282016.

The spelling of 135683537 in words is "one hundred thirty-five million, six hundred eighty-three thousand, five hundred thirty-seven".