135072344 has 32 divisors (see below), whose sum is σ = 292539600. Its totient is φ = 57784320.

The previous prime is 135072337. The next prime is 135072347. The reversal of 135072344 is 443270531.

It is a happy number.

It is a super-2 number, since 2×135072344² = 36489076227308672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135072347) 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, 43649 + ... + 46640.

Almost surely, 2^135072344 is an apocalyptic number.

It is an amenable number.

135072344 is an abundant number, since it is smaller than the sum of its proper divisors (157467256).

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

135072344 is a wasteful number, since it uses less digits than its factorization.

135072344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90323 (or 90319 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 135072344 is about 11622.0628117387. The cubic root of 135072344 is about 513.0844020838.

It can be divided in two parts, 13507 and 2344, that added together give a palindrome (15851).

The spelling of 135072344 in words is "one hundred thirty-five million, seventy-two thousand, three hundred forty-four".