135678429 has 16 divisors (see below), whose sum is σ = 202244800. Its totient is φ = 89894448.

The previous prime is 135678419. The next prime is 135678437. The reversal of 135678429 is 924876531.

135678429 is a `hidden beast` number, since 1 + 3 + 567 + 84 + 2 + 9 = 666.

It is not a de Polignac number, because 135678429 - 2¹¹ = 135676381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135678409) 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 15 ways as a sum of consecutive naturals, for example, 11014 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (12640300).

Almost surely, 2^135678429 is an apocalyptic number.

It is an amenable number.

135678429 is a deficient number, since it is larger than the sum of its proper divisors (66566371).

135678429 is a wasteful number, since it uses less digits than its factorization.

135678429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31001 (or 30995 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 135678429 is about 11648.1083872018. The cubic root of 135678429 is about 513.8506798262.

The spelling of 135678429 in words is "one hundred thirty-five million, six hundred seventy-eight thousand, four hundred twenty-nine".