135639782 has 8 divisors (see below), whose sum is σ = 203517336. Its totient is φ = 67800672.

The previous prime is 135639781. The next prime is 135639797. The reversal of 135639782 is 287936531.

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

It is a super-2 number, since 2×135639782² = 36796300922015048, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135639781) 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 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 16595.

It is an arithmetic number, because the mean of its divisors is an integer number (25439667).

Almost surely, 2^135639782 is an apocalyptic number.

135639782 is a deficient number, since it is larger than the sum of its proper divisors (67877554).

135639782 is a wasteful number, since it uses less digits than its factorization.

135639782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19222.

The product of its digits is 272160, while the sum is 44.

The square root of 135639782 is about 11646.4493301607. The cubic root of 135639782 is about 513.8018863341.

The spelling of 135639782 in words is "one hundred thirty-five million, six hundred thirty-nine thousand, seven hundred eighty-two".