135986429 has 8 divisors (see below), whose sum is σ = 140550912. Its totient is φ = 131433120.

The previous prime is 135986399. The next prime is 135986437. The reversal of 135986429 is 924689531.

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 135986429 - 2¹² = 135982333 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135986129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27242 + ... + 31844.

It is an arithmetic number, because the mean of its divisors is an integer number (17568864).

Almost surely, 2^135986429 is an apocalyptic number.

It is an amenable number.

135986429 is a deficient number, since it is larger than the sum of its proper divisors (4564483).

135986429 is an equidigital number, since it uses as much as digits as its factorization.

135986429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5587.

The product of its digits is 466560, while the sum is 47.

The square root of 135986429 is about 11661.3219233499. The cubic root of 135986429 is about 514.2392122379.

The spelling of 135986429 in words is "one hundred thirty-five million, nine hundred eighty-six thousand, four hundred twenty-nine".