135023910 has 96 divisors (see below), whose sum is σ = 389256192. Its totient is φ = 29856960.

The previous prime is 135023909. The next prime is 135023951. The reversal of 135023910 is 19320531.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 44089 + ... + 47051.

It is an arithmetic number, because the mean of its divisors is an integer number (4054752).

Almost surely, 2^135023910 is an apocalyptic number.

135023910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135023910, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194628096).

135023910 is an abundant number, since it is smaller than the sum of its proper divisors (254232282).

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

135023910 is a wasteful number, since it uses less digits than its factorization.

135023910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018 (or 3011 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 135023910 is about 11619.9789156435. The cubic root of 135023910 is about 513.0230677892.

The spelling of 135023910 in words is "one hundred thirty-five million, twenty-three thousand, nine hundred ten".