135031344 has 160 divisors (see below), whose sum is σ = 422544384. Its totient is φ = 36326400.

The previous prime is 135031339. The next prime is 135031361. The reversal of 135031344 is 443130531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 780442 + ... + 780614.

Almost surely, 2^135031344 is an apocalyptic number.

135031344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135031344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211272192).

135031344 is an abundant number, since it is smaller than the sum of its proper divisors (287513040).

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

135031344 is a wasteful number, since it uses less digits than its factorization.

135031344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 135031344 is about 11620.2987913392. The cubic root of 135031344 is about 513.0324827723.

Adding to 135031344 its reverse (443130531), we get a palindrome (578161875).

The spelling of 135031344 in words is "one hundred thirty-five million, thirty-one thousand, three hundred forty-four".