135938944 has 32 divisors (see below), whose sum is σ = 277431840. Its totient is φ = 66309120.

The previous prime is 135938941. The next prime is 135938951. The reversal of 135938944 is 449839531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 135938894 and 135938903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135938941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7704 + ... + 18199.

It is an arithmetic number, because the mean of its divisors is an integer number (8669745).

Almost surely, 2^135938944 is an apocalyptic number.

It is an amenable number.

135938944 is an abundant number, since it is smaller than the sum of its proper divisors (141492896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135938944 is an equidigital number, since it uses as much as digits as its factorization.

135938944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25958 (or 25946 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 135938944 is about 11659.2857414166. The cubic root of 135938944 is about 514.1793496669.

The spelling of 135938944 in words is "one hundred thirty-five million, nine hundred thirty-eight thousand, nine hundred forty-four".