135606313 has 4 divisors (see below), whose sum is σ = 137240208. Its totient is φ = 133972420.

The previous prime is 135606293. The next prime is 135606323. The reversal of 135606313 is 313606531.

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 135606313 - 2⁵ = 135606281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135606323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816823 + ... + 816988.

It is an arithmetic number, because the mean of its divisors is an integer number (34310052).

Almost surely, 2^135606313 is an apocalyptic number.

It is an amenable number.

135606313 is a deficient number, since it is larger than the sum of its proper divisors (1633895).

135606313 is an equidigital number, since it uses as much as digits as its factorization.

135606313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1633894.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 135606313 is about 11645.0123658157. The cubic root of 135606313 is about 513.7596227993.

The spelling of 135606313 in words is "one hundred thirty-five million, six hundred six thousand, three hundred thirteen".