135971682 has 32 divisors (see below), whose sum is σ = 339047424. Its totient is φ = 35317200.

The previous prime is 135971681. The next prime is 135971687. The reversal of 135971682 is 286179531.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a zygodrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (135971681) 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 15 ways as a sum of consecutive naturals, for example, 146694 + ... + 147617.

It is an arithmetic number, because the mean of its divisors is an integer number (10595232).

Almost surely, 2^135971682 is an apocalyptic number.

135971682 is an abundant number, since it is smaller than the sum of its proper divisors (203075742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135971682 is a wasteful number, since it uses less digits than its factorization.

135971682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294334.

The product of its digits is 90720, while the sum is 42.

The square root of 135971682 is about 11660.6896022491. The cubic root of 135971682 is about 514.2206227363.

The spelling of 135971682 in words is "one hundred thirty-five million, nine hundred seventy-one thousand, six hundred eighty-two".