135129766 has 8 divisors (see below), whose sum is σ = 202765680. Its totient is φ = 67541208.

The previous prime is 135129707. The next prime is 135129769. The reversal of 135129766 is 667921531.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135129769) 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, 3541 + ... + 16816.

It is an arithmetic number, because the mean of its divisors is an integer number (25345710).

Almost surely, 2^135129766 is an apocalyptic number.

135129766 is a deficient number, since it is larger than the sum of its proper divisors (67635914).

135129766 is a wasteful number, since it uses less digits than its factorization.

135129766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23678.

The product of its digits is 68040, while the sum is 40.

The square root of 135129766 is about 11624.5329368539. The cubic root of 135129766 is about 513.1570993206.

The spelling of 135129766 in words is "one hundred thirty-five million, one hundred twenty-nine thousand, seven hundred sixty-six".