135623712 has 48 divisors (see below), whose sum is σ = 406873152. Its totient is φ = 38749440.

The previous prime is 135623711. The next prime is 135623723. The reversal of 135623712 is 217326531.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 135623712.

It is not an unprimeable number, because it can be changed into a prime (135623711) 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, 100239 + ... + 101582.

It is an arithmetic number, because the mean of its divisors is an integer number (8476524).

Almost surely, 2^135623712 is an apocalyptic number.

135623712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

135623712 is an abundant number, since it is smaller than the sum of its proper divisors (271249440).

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

135623712 is a wasteful number, since it uses less digits than its factorization.

135623712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201841 (or 201833 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 135623712 is about 11645.7593998846. The cubic root of 135623712 is about 513.7815945429.

The spelling of 135623712 in words is "one hundred thirty-five million, six hundred twenty-three thousand, seven hundred twelve".