135624939 has 8 divisors (see below), whose sum is σ = 184680960. Its totient is φ = 88492776.

The previous prime is 135624917. The next prime is 135624947. The reversal of 135624939 is 939426531.

It is a happy number.

135624939 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 135624939 - 2¹¹ = 135622891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135624939.

It is not an unprimeable number, because it can be changed into a prime (135624949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480799 + ... + 481080.

It is an arithmetic number, because the mean of its divisors is an integer number (23085120).

Almost surely, 2^135624939 is an apocalyptic number.

135624939 is a deficient number, since it is larger than the sum of its proper divisors (49056021).

135624939 is an equidigital number, since it uses as much as digits as its factorization.

135624939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961929.

The product of its digits is 174960, while the sum is 42.

The square root of 135624939 is about 11645.8120798852. The cubic root of 135624939 is about 513.7831439478.

The spelling of 135624939 in words is "one hundred thirty-five million, six hundred twenty-four thousand, nine hundred thirty-nine".