135500837 has 4 divisors (see below), whose sum is σ = 142632480. Its totient is φ = 128369196.

The previous prime is 135500791. The next prime is 135500839. The reversal of 135500837 is 738005531.

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 135500837 - 2⁶ = 135500773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135500839) 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, 3565793 + ... + 3565830.

It is an arithmetic number, because the mean of its divisors is an integer number (35658120).

Almost surely, 2^135500837 is an apocalyptic number.

It is an amenable number.

135500837 is a deficient number, since it is larger than the sum of its proper divisors (7131643).

135500837 is an equidigital number, since it uses as much as digits as its factorization.

135500837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131642.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 135500837 is about 11640.4826789957. The cubic root of 135500837 is about 513.6263857238.

The spelling of 135500837 in words is "one hundred thirty-five million, five hundred thousand, eight hundred thirty-seven".