135687782 has 8 divisors (see below), whose sum is σ = 203797296. Its totient is φ = 67755352.

The previous prime is 135687763. The next prime is 135687809. The reversal of 135687782 is 287786531.

It is a happy number.

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

It is a super-2 number, since 2×135687782² = 36822348368159048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42338 + ... + 45429.

It is an arithmetic number, because the mean of its divisors is an integer number (25474662).

Almost surely, 2^135687782 is an apocalyptic number.

135687782 is a deficient number, since it is larger than the sum of its proper divisors (68109514).

135687782 is an equidigital number, since it uses as much as digits as its factorization.

135687782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88542.

The product of its digits is 564480, while the sum is 47.

The square root of 135687782 is about 11648.5098617806. The cubic root of 135687782 is about 513.8624869966.

The spelling of 135687782 in words is "one hundred thirty-five million, six hundred eighty-seven thousand, seven hundred eighty-two".