135607837 has 4 divisors (see below), whose sum is σ = 135834076. Its totient is φ = 135381600.

The previous prime is 135607729. The next prime is 135607891. The reversal of 135607837 is 738706531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 738706531 = 29 ⋅25472639.

It can be written as a sum of positive squares in 2 ways, for example, as 125910841 + 9696996 = 11221^2 + 3114^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135607837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135607837.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135607897) 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, 112218 + ... + 113419.

It is an arithmetic number, because the mean of its divisors is an integer number (33958519).

Almost surely, 2^135607837 is an apocalyptic number.

It is an amenable number.

135607837 is a deficient number, since it is larger than the sum of its proper divisors (226239).

135607837 is an equidigital number, since it uses as much as digits as its factorization.

135607837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226238.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 135607837 is about 11645.0778013717. The cubic root of 135607837 is about 513.7615474067.

The spelling of 135607837 in words is "one hundred thirty-five million, six hundred seven thousand, eight hundred thirty-seven".