135816837 has 16 divisors (see below), whose sum is σ = 195326208. Its totient is φ = 83448000.

The previous prime is 135816829. The next prime is 135816871. The reversal of 135816837 is 738618531.

It is not a de Polignac number, because 135816837 - 2³ = 135816829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135816827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26212 + ... + 30962.

It is an arithmetic number, because the mean of its divisors is an integer number (12207888).

Almost surely, 2^135816837 is an apocalyptic number.

It is an amenable number.

135816837 is a deficient number, since it is larger than the sum of its proper divisors (59509371).

135816837 is a wasteful number, since it uses less digits than its factorization.

135816837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5500.

The product of its digits is 120960, while the sum is 42.

The square root of 135816837 is about 11654.0480949754. The cubic root of 135816837 is about 514.0253498780.

The spelling of 135816837 in words is "one hundred thirty-five million, eight hundred sixteen thousand, eight hundred thirty-seven".