135929923 has 16 divisors (see below), whose sum is σ = 142876800. Its totient is φ = 129205440.

The previous prime is 135929891. The next prime is 135929939. The reversal of 135929923 is 329929531.

It is a cyclic number.

It is not a de Polignac number, because 135929923 - 2⁵ = 135929891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135929923.

It is not an unprimeable number, because it can be changed into a prime (135929323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332143 + ... + 332551.

It is an arithmetic number, because the mean of its divisors is an integer number (8929800).

Almost surely, 2^135929923 is an apocalyptic number.

135929923 is a deficient number, since it is larger than the sum of its proper divisors (6946877).

135929923 is a wasteful number, since it uses less digits than its factorization.

135929923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642.

The product of its digits is 131220, while the sum is 43.

The square root of 135929923 is about 11658.8988759659. The cubic root of 135929923 is about 514.1679756525.

The spelling of 135929923 in words is "one hundred thirty-five million, nine hundred twenty-nine thousand, nine hundred twenty-three".