72685135 has 8 divisors (see below), whose sum is σ = 88326720. Its totient is φ = 57411744.

The previous prime is 72685121. The next prime is 72685139. The reversal of 72685135 is 53158627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72685135 - 2¹³ = 72676943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72685094 and 72685103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72685139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91612 + ... + 92401.

It is an arithmetic number, because the mean of its divisors is an integer number (11040840).

Almost surely, 2^72685135 is an apocalyptic number.

72685135 is a deficient number, since it is larger than the sum of its proper divisors (15641585).

72685135 is a wasteful number, since it uses less digits than its factorization.

72685135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184097.

The product of its digits is 50400, while the sum is 37.

The square root of 72685135 is about 8525.5577530153. The cubic root of 72685135 is about 417.3321734536.

It can be divided in two parts, 7268 and 5135, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 72685135 in words is "seventy-two million, six hundred eighty-five thousand, one hundred thirty-five".