135912704 has 72 divisors (see below), whose sum is σ = 290509632. Its totient is φ = 63303680.

The previous prime is 135912703. The next prime is 135912709. The reversal of 135912704 is 407219531.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135912703) 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, 241127 + ... + 241689.

It is an arithmetic number, because the mean of its divisors is an integer number (4034856).

Almost surely, 2^135912704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135912704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145254816).

135912704 is an abundant number, since it is smaller than the sum of its proper divisors (154596928).

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

135912704 is an equidigital number, since it uses as much as digits as its factorization.

135912704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 135912704 is about 11658.1604037687. The cubic root of 135912704 is about 514.1462638958.

The spelling of 135912704 in words is "one hundred thirty-five million, nine hundred twelve thousand, seven hundred four".