135869433 has 16 divisors (see below), whose sum is σ = 211445760. Its totient is φ = 75987216.

The previous prime is 135869417. The next prime is 135869453. The reversal of 135869433 is 334968531.

135869433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135869433 - 2⁴ = 135869417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135869453) 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, 67843 + ... + 69816.

It is an arithmetic number, because the mean of its divisors is an integer number (13215360).

Almost surely, 2^135869433 is an apocalyptic number.

It is an amenable number.

135869433 is a deficient number, since it is larger than the sum of its proper divisors (75576327).

135869433 is a wasteful number, since it uses less digits than its factorization.

135869433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137716.

The product of its digits is 233280, while the sum is 42.

The square root of 135869433 is about 11656.3044315083. The cubic root of 135869433 is about 514.0916945932.

The spelling of 135869433 in words is "one hundred thirty-five million, eight hundred sixty-nine thousand, four hundred thirty-three".