135423750 has 240 divisors, whose sum is σ = 435910464. Its totient is φ = 27720000.

The previous prime is 135423749. The next prime is 135423791. The reversal of 135423750 is 57324531.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2021217 + ... + 2021283.

Almost surely, 2^135423750 is an apocalyptic number.

135423750 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 135423750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217955232).

135423750 is an abundant number, since it is smaller than the sum of its proper divisors (300486714).

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

135423750 is a wasteful number, since it uses less digits than its factorization.

135423750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117 (or 95 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 135423750 is about 11637.1710479824. The cubic root of 135423750 is about 513.5289658386.

The spelling of 135423750 in words is "one hundred thirty-five million, four hundred twenty-three thousand, seven hundred fifty".