135563837 has 4 divisors (see below), whose sum is σ = 139936896. Its totient is φ = 131190780.

The previous prime is 135563809. The next prime is 135563843. The reversal of 135563837 is 738365531.

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 135563837 - 2⁸ = 135563581 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135563794 and 135563803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135563807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2186483 + ... + 2186544.

It is an arithmetic number, because the mean of its divisors is an integer number (34984224).

Almost surely, 2^135563837 is an apocalyptic number.

It is an amenable number.

135563837 is a deficient number, since it is larger than the sum of its proper divisors (4373059).

135563837 is an equidigital number, since it uses as much as digits as its factorization.

135563837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373058.

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

The square root of 135563837 is about 11643.1884378808. The cubic root of 135563837 is about 513.7059755117.

The spelling of 135563837 in words is "one hundred thirty-five million, five hundred sixty-three thousand, eight hundred thirty-seven".